Home / 643,731.20-965,769.60-574,092.80

Finding the Fourth Proportional to 643,731.20, 965,769.60 and 574,092.80

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Solution

The fourth proportional to 643,731.20, 965,769.60 and 574,092.80 is: 861,293.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,731.20 : 965,769.60 = 574,092.80 : x
  2. Step 2: Convert to fraction form
    643,731.20/965,769.60 = 574,092.80/x
  3. Step 3: Cross multiply
    643,731.20x = 965,769.60 × 574,092.80
  4. Step 4: Simplify right side
    643,731.20x = 554,441,373,818.88
  5. Step 5: Solve for x
    x = 554,441,373,818.88/643,731.20
  6. Step 6: Final answer
    x = 861,293.31

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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.