Home / 1,098,082.30-1,643,915.85-783,154.30

Finding the Fourth Proportional to 1,098,082.30, 1,643,915.85 and 783,154.30

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Solution

The fourth proportional to 1,098,082.30, 1,643,915.85 and 783,154.30 is: 1,172,443.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,082.30 : 1,643,915.85 = 783,154.30 : x
  2. Step 2: Convert to fraction form
    1,098,082.30/1,643,915.85 = 783,154.30/x
  3. Step 3: Cross multiply
    1,098,082.30x = 1,643,915.85 × 783,154.30
  4. Step 4: Simplify right side
    1,098,082.30x = 1,287,439,766,765.66
  5. Step 5: Solve for x
    x = 1,287,439,766,765.66/1,098,082.30
  6. Step 6: Final answer
    x = 1,172,443.78

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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.