Home / 529,861.30-731,213.50-288,146.18

Finding the Fourth Proportional to 529,861.30, 731,213.50 and 288,146.18

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Solution

The fourth proportional to 529,861.30, 731,213.50 and 288,146.18 is: 397,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,861.30 : 731,213.50 = 288,146.18 : x
  2. Step 2: Convert to fraction form
    529,861.30/731,213.50 = 288,146.18/x
  3. Step 3: Cross multiply
    529,861.30x = 731,213.50 × 288,146.18
  4. Step 4: Simplify right side
    529,861.30x = 210,696,376,789.43
  5. Step 5: Solve for x
    x = 210,696,376,789.43/529,861.30
  6. Step 6: Final answer
    x = 397,644.40

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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.