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Finding the Fourth Proportional to 529,204.91, 730,308.99 and 287,491.29

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Solution

The fourth proportional to 529,204.91, 730,308.99 and 287,491.29 is: 396,741.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,204.91 : 730,308.99 = 287,491.29 : x
  2. Step 2: Convert to fraction form
    529,204.91/730,308.99 = 287,491.29/x
  3. Step 3: Cross multiply
    529,204.91x = 730,308.99 × 287,491.29
  4. Step 4: Simplify right side
    529,204.91x = 209,957,473,633.70
  5. Step 5: Solve for x
    x = 209,957,473,633.70/529,204.91
  6. Step 6: Final answer
    x = 396,741.36

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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.