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Finding the Fourth Proportional to 529,016.33, 730,042.36 and 287,298.97

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Solution

The fourth proportional to 529,016.33, 730,042.36 and 287,298.97 is: 396,472.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,016.33 : 730,042.36 = 287,298.97 : x
  2. Step 2: Convert to fraction form
    529,016.33/730,042.36 = 287,298.97/x
  3. Step 3: Cross multiply
    529,016.33x = 730,042.36 × 287,298.97
  4. Step 4: Simplify right side
    529,016.33x = 209,740,415,541.02
  5. Step 5: Solve for x
    x = 209,740,415,541.02/529,016.33
  6. Step 6: Final answer
    x = 396,472.48

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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.