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Finding the Fourth Proportional to 529,851.28, 731,213.96 and 303,540.52

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Solution

The fourth proportional to 529,851.28, 731,213.96 and 303,540.52 is: 418,896.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,851.28 : 731,213.96 = 303,540.52 : x
  2. Step 2: Convert to fraction form
    529,851.28/731,213.96 = 303,540.52/x
  3. Step 3: Cross multiply
    529,851.28x = 731,213.96 × 303,540.52
  4. Step 4: Simplify right side
    529,851.28x = 221,953,065,649.66
  5. Step 5: Solve for x
    x = 221,953,065,649.66/529,851.28
  6. Step 6: Final answer
    x = 418,896.91

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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.