Home / 749,318.40-1,123,977.60-275,905.80

Finding the Fourth Proportional to 749,318.40, 1,123,977.60 and 275,905.80

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Solution

The fourth proportional to 749,318.40, 1,123,977.60 and 275,905.80 is: 413,858.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,318.40 : 1,123,977.60 = 275,905.80 : x
  2. Step 2: Convert to fraction form
    749,318.40/1,123,977.60 = 275,905.80/x
  3. Step 3: Cross multiply
    749,318.40x = 1,123,977.60 × 275,905.80
  4. Step 4: Simplify right side
    749,318.40x = 310,111,938,910.08
  5. Step 5: Solve for x
    x = 310,111,938,910.08/749,318.40
  6. Step 6: Final answer
    x = 413,858.70

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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.