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Finding the Fourth Proportional to 529,419.31, 730,560.26 and 299,981.14

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Solution

The fourth proportional to 529,419.31, 730,560.26 and 299,981.14 is: 413,952.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,419.31 : 730,560.26 = 299,981.14 : x
  2. Step 2: Convert to fraction form
    529,419.31/730,560.26 = 299,981.14/x
  3. Step 3: Cross multiply
    529,419.31x = 730,560.26 × 299,981.14
  4. Step 4: Simplify right side
    529,419.31x = 219,154,298,557.05
  5. Step 5: Solve for x
    x = 219,154,298,557.05/529,419.31
  6. Step 6: Final answer
    x = 413,952.22

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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.