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Finding the Fourth Proportional to 415,079.43, 569,073.38 and 407,512.62

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Solution

The fourth proportional to 415,079.43, 569,073.38 and 407,512.62 is: 558,699.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,079.43 : 569,073.38 = 407,512.62 : x
  2. Step 2: Convert to fraction form
    415,079.43/569,073.38 = 407,512.62/x
  3. Step 3: Cross multiply
    415,079.43x = 569,073.38 × 407,512.62
  4. Step 4: Simplify right side
    415,079.43x = 231,904,579,173.13
  5. Step 5: Solve for x
    x = 231,904,579,173.13/415,079.43
  6. Step 6: Final answer
    x = 558,699.28

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.