Home / 726,229.20-1,090,380.60-411,301.20

Finding the Fourth Proportional to 726,229.20, 1,090,380.60 and 411,301.20

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Solution

The fourth proportional to 726,229.20, 1,090,380.60 and 411,301.20 is: 617,538.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,229.20 : 1,090,380.60 = 411,301.20 : x
  2. Step 2: Convert to fraction form
    726,229.20/1,090,380.60 = 411,301.20/x
  3. Step 3: Cross multiply
    726,229.20x = 1,090,380.60 × 411,301.20
  4. Step 4: Simplify right side
    726,229.20x = 448,474,849,236.72
  5. Step 5: Solve for x
    x = 448,474,849,236.72/726,229.20
  6. Step 6: Final answer
    x = 617,538.99

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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.