Home / 724,758.10-1,086,765.27-383,385.78

Finding the Fourth Proportional to 724,758.10, 1,086,765.27 and 383,385.78

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Solution

The fourth proportional to 724,758.10, 1,086,765.27 and 383,385.78 is: 574,881.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,758.10 : 1,086,765.27 = 383,385.78 : x
  2. Step 2: Convert to fraction form
    724,758.10/1,086,765.27 = 383,385.78/x
  3. Step 3: Cross multiply
    724,758.10x = 1,086,765.27 × 383,385.78
  4. Step 4: Simplify right side
    724,758.10x = 416,650,350,715.86
  5. Step 5: Solve for x
    x = 416,650,350,715.86/724,758.10
  6. Step 6: Final answer
    x = 574,881.95

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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.