Home / 1,123,861.20-1,685,791.80-651,760.80

Finding the Fourth Proportional to 1,123,861.20, 1,685,791.80 and 651,760.80

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Solution

The fourth proportional to 1,123,861.20, 1,685,791.80 and 651,760.80 is: 977,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,861.20 : 1,685,791.80 = 651,760.80 : x
  2. Step 2: Convert to fraction form
    1,123,861.20/1,685,791.80 = 651,760.80/x
  3. Step 3: Cross multiply
    1,123,861.20x = 1,685,791.80 × 651,760.80
  4. Step 4: Simplify right side
    1,123,861.20x = 1,098,733,012,201.44
  5. Step 5: Solve for x
    x = 1,098,733,012,201.44/1,123,861.20
  6. Step 6: Final answer
    x = 977,641.20

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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.