Home / 749,039.10-1,123,558.65-276,063.90

Finding the Fourth Proportional to 749,039.10, 1,123,558.65 and 276,063.90

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Solution

The fourth proportional to 749,039.10, 1,123,558.65 and 276,063.90 is: 414,095.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,039.10 : 1,123,558.65 = 276,063.90 : x
  2. Step 2: Convert to fraction form
    749,039.10/1,123,558.65 = 276,063.90/x
  3. Step 3: Cross multiply
    749,039.10x = 1,123,558.65 × 276,063.90
  4. Step 4: Simplify right side
    749,039.10x = 310,173,982,797.74
  5. Step 5: Solve for x
    x = 310,173,982,797.74/749,039.10
  6. Step 6: Final answer
    x = 414,095.85

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Double scale
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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.