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Finding the Fourth Proportional to 529,793.30, 731,104.41 and 288,073.76

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Solution

The fourth proportional to 529,793.30, 731,104.41 and 288,073.76 is: 397,536.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,793.30 : 731,104.41 = 288,073.76 : x
  2. Step 2: Convert to fraction form
    529,793.30/731,104.41 = 288,073.76/x
  3. Step 3: Cross multiply
    529,793.30x = 731,104.41 × 288,073.76
  4. Step 4: Simplify right side
    529,793.30x = 210,611,996,341.28
  5. Step 5: Solve for x
    x = 210,611,996,341.28/529,793.30
  6. Step 6: Final answer
    x = 397,536.16

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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.