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Finding the Fourth Proportional to 529,061.62, 730,110.32 and 287,348.92

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Solution

The fourth proportional to 529,061.62, 730,110.32 and 287,348.92 is: 396,544.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,061.62 : 730,110.32 = 287,348.92 : x
  2. Step 2: Convert to fraction form
    529,061.62/730,110.32 = 287,348.92/x
  3. Step 3: Cross multiply
    529,061.62x = 730,110.32 × 287,348.92
  4. Step 4: Simplify right side
    529,061.62x = 209,796,411,932.85
  5. Step 5: Solve for x
    x = 209,796,411,932.85/529,061.62
  6. Step 6: Final answer
    x = 396,544.38

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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.