Home / 861,630.80-1,292,446.20-683,171.60

Finding the Fourth Proportional to 861,630.80, 1,292,446.20 and 683,171.60

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Solution

The fourth proportional to 861,630.80, 1,292,446.20 and 683,171.60 is: 1,024,757.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,630.80 : 1,292,446.20 = 683,171.60 : x
  2. Step 2: Convert to fraction form
    861,630.80/1,292,446.20 = 683,171.60/x
  3. Step 3: Cross multiply
    861,630.80x = 1,292,446.20 × 683,171.60
  4. Step 4: Simplify right side
    861,630.80x = 882,962,538,367.92
  5. Step 5: Solve for x
    x = 882,962,538,367.92/861,630.80
  6. Step 6: Final answer
    x = 1,024,757.40

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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.