Home / 529,016.10-730,042.02-287,298.74

Finding the Fourth Proportional to 529,016.10, 730,042.02 and 287,298.74

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Solution

The fourth proportional to 529,016.10, 730,042.02 and 287,298.74 is: 396,472.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,016.10 : 730,042.02 = 287,298.74 : x
  2. Step 2: Convert to fraction form
    529,016.10/730,042.02 = 287,298.74/x
  3. Step 3: Cross multiply
    529,016.10x = 730,042.02 × 287,298.74
  4. Step 4: Simplify right side
    529,016.10x = 209,740,152,493.06
  5. Step 5: Solve for x
    x = 209,740,152,493.06/529,016.10
  6. Step 6: Final answer
    x = 396,472.15

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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.