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Finding the Fourth Proportional to 529,956.88, 731,349.90 and 288,244.72

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Solution

The fourth proportional to 529,956.88, 731,349.90 and 288,244.72 is: 397,782.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,956.88 : 731,349.90 = 288,244.72 : x
  2. Step 2: Convert to fraction form
    529,956.88/731,349.90 = 288,244.72/x
  3. Step 3: Cross multiply
    529,956.88x = 731,349.90 × 288,244.72
  4. Step 4: Simplify right side
    529,956.88x = 210,807,747,147.53
  5. Step 5: Solve for x
    x = 210,807,747,147.53/529,956.88
  6. Step 6: Final answer
    x = 397,782.83

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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.