Home / 763,729.50-1,145,306.25-613,600.86

Finding the Fourth Proportional to 763,729.50, 1,145,306.25 and 613,600.86

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Solution

The fourth proportional to 763,729.50, 1,145,306.25 and 613,600.86 is: 920,169.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,729.50 : 1,145,306.25 = 613,600.86 : x
  2. Step 2: Convert to fraction form
    763,729.50/1,145,306.25 = 613,600.86/x
  3. Step 3: Cross multiply
    763,729.50x = 1,145,306.25 × 613,600.86
  4. Step 4: Simplify right side
    763,729.50x = 702,760,899,963.38
  5. Step 5: Solve for x
    x = 702,760,899,963.38/763,729.50
  6. Step 6: Final answer
    x = 920,169.90

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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.