Home / 749,039.10-1,123,558.65-250,338.30

Finding the Fourth Proportional to 749,039.10, 1,123,558.65 and 250,338.30

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Solution

The fourth proportional to 749,039.10, 1,123,558.65 and 250,338.30 is: 375,507.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,039.10 : 1,123,558.65 = 250,338.30 : x
  2. Step 2: Convert to fraction form
    749,039.10/1,123,558.65 = 250,338.30/x
  3. Step 3: Cross multiply
    749,039.10x = 1,123,558.65 × 250,338.30
  4. Step 4: Simplify right side
    749,039.10x = 281,269,762,391.30
  5. Step 5: Solve for x
    x = 281,269,762,391.30/749,039.10
  6. Step 6: Final answer
    x = 375,507.45

Related Problems

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Half scale
Find fourth proportional to 1,498,078.20, 2,247,117.30 and 500,676.60
Double scale
Find fourth proportional to 749,040.10, 1,123,560.15 and 250,339.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.