Home / 1,391,569.20-2,087,135.10-492,882.30

Finding the Fourth Proportional to 1,391,569.20, 2,087,135.10 and 492,882.30

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Solution

The fourth proportional to 1,391,569.20, 2,087,135.10 and 492,882.30 is: 739,245.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,569.20 : 2,087,135.10 = 492,882.30 : x
  2. Step 2: Convert to fraction form
    1,391,569.20/2,087,135.10 = 492,882.30/x
  3. Step 3: Cross multiply
    1,391,569.20x = 2,087,135.10 × 492,882.30
  4. Step 4: Simplify right side
    1,391,569.20x = 1,028,711,948,498.73
  5. Step 5: Solve for x
    x = 1,028,711,948,498.73/1,391,569.20
  6. Step 6: Final answer
    x = 739,245.99

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1.5x scale

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.