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Finding the Fourth Proportional to 569,702.40, 853,427.20 and 499,660.80

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Solution

The fourth proportional to 569,702.40, 853,427.20 and 499,660.80 is: 748,503.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,702.40 : 853,427.20 = 499,660.80 : x
  2. Step 2: Convert to fraction form
    569,702.40/853,427.20 = 499,660.80/x
  3. Step 3: Cross multiply
    569,702.40x = 853,427.20 × 499,660.80
  4. Step 4: Simplify right side
    569,702.40x = 426,424,117,493.76
  5. Step 5: Solve for x
    x = 426,424,117,493.76/569,702.40
  6. Step 6: Final answer
    x = 748,503.28

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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.