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Finding the Fourth Proportional to 569,729.40, 853,467.70 and 499,687.80

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Solution

The fourth proportional to 569,729.40, 853,467.70 and 499,687.80 is: 748,543.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,729.40 : 853,467.70 = 499,687.80 : x
  2. Step 2: Convert to fraction form
    569,729.40/853,467.70 = 499,687.80/x
  3. Step 3: Cross multiply
    569,729.40x = 853,467.70 × 499,687.80
  4. Step 4: Simplify right side
    569,729.40x = 426,467,397,384.06
  5. Step 5: Solve for x
    x = 426,467,397,384.06/569,729.40
  6. Step 6: Final answer
    x = 748,543.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.