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Finding the Fourth Proportional to 529,179.37, 730,272.72 and 287,463.90

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Solution

The fourth proportional to 529,179.37, 730,272.72 and 287,463.90 is: 396,702.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,179.37 : 730,272.72 = 287,463.90 : x
  2. Step 2: Convert to fraction form
    529,179.37/730,272.72 = 287,463.90/x
  3. Step 3: Cross multiply
    529,179.37x = 730,272.72 × 287,463.90
  4. Step 4: Simplify right side
    529,179.37x = 209,927,040,503.44
  5. Step 5: Solve for x
    x = 209,927,040,503.44/529,179.37
  6. Step 6: Final answer
    x = 396,702.99

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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.