Home / 1,224,731.13-1,690,186.60-680,876

Finding the Fourth Proportional to 1,224,731.13, 1,690,186.60 and 680,876

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Solution

The fourth proportional to 1,224,731.13, 1,690,186.60 and 680,876 is: 939,640.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,731.13 : 1,690,186.60 = 680,876 : x
  2. Step 2: Convert to fraction form
    1,224,731.13/1,690,186.60 = 680,876/x
  3. Step 3: Cross multiply
    1,224,731.13x = 1,690,186.60 × 680,876
  4. Step 4: Simplify right side
    1,224,731.13x = 1,150,807,491,461.60
  5. Step 5: Solve for x
    x = 1,150,807,491,461.60/1,224,731.13
  6. Step 6: Final answer
    x = 939,640.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.