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Finding the Fourth Proportional to 415,702.97, 573,287.51 and 272,410.97

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Solution

The fourth proportional to 415,702.97, 573,287.51 and 272,410.97 is: 375,676.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,702.97 : 573,287.51 = 272,410.97 : x
  2. Step 2: Convert to fraction form
    415,702.97/573,287.51 = 272,410.97/x
  3. Step 3: Cross multiply
    415,702.97x = 573,287.51 × 272,410.97
  4. Step 4: Simplify right side
    415,702.97x = 156,169,804,502.58
  5. Step 5: Solve for x
    x = 156,169,804,502.58/415,702.97
  6. Step 6: Final answer
    x = 375,676.43

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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.