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Finding the Fourth Proportional to 720,306.18, 994,229.55 and 475,469.64

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Solution

The fourth proportional to 720,306.18, 994,229.55 and 475,469.64 is: 656,284.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,306.18 : 994,229.55 = 475,469.64 : x
  2. Step 2: Convert to fraction form
    720,306.18/994,229.55 = 475,469.64/x
  3. Step 3: Cross multiply
    720,306.18x = 994,229.55 × 475,469.64
  4. Step 4: Simplify right side
    720,306.18x = 472,725,966,215.86
  5. Step 5: Solve for x
    x = 472,725,966,215.86/720,306.18
  6. Step 6: Final answer
    x = 656,284.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.