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Finding the Fourth Proportional to 415,708.59, 573,295.28 and 272,416.59

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Solution

The fourth proportional to 415,708.59, 573,295.28 and 272,416.59 is: 375,684.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,708.59 : 573,295.28 = 272,416.59 : x
  2. Step 2: Convert to fraction form
    415,708.59/573,295.28 = 272,416.59/x
  3. Step 3: Cross multiply
    415,708.59x = 573,295.28 × 272,416.59
  4. Step 4: Simplify right side
    415,708.59x = 156,175,143,878.61
  5. Step 5: Solve for x
    x = 156,175,143,878.61/415,708.59
  6. Step 6: Final answer
    x = 375,684.19

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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.