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Finding the Fourth Proportional to 529,257.28, 730,419.52 and 299,887.49

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Solution

The fourth proportional to 529,257.28, 730,419.52 and 299,887.49 is: 413,869.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,257.28 : 730,419.52 = 299,887.49 : x
  2. Step 2: Convert to fraction form
    529,257.28/730,419.52 = 299,887.49/x
  3. Step 3: Cross multiply
    529,257.28x = 730,419.52 × 299,887.49
  4. Step 4: Simplify right side
    529,257.28x = 219,043,676,499.81
  5. Step 5: Solve for x
    x = 219,043,676,499.81/529,257.28
  6. Step 6: Final answer
    x = 413,869.94

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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.