Home / 1,391,572.80-2,087,359.20-949,204.80

Finding the Fourth Proportional to 1,391,572.80, 2,087,359.20 and 949,204.80

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Solution

The fourth proportional to 1,391,572.80, 2,087,359.20 and 949,204.80 is: 1,423,807.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,572.80 : 2,087,359.20 = 949,204.80 : x
  2. Step 2: Convert to fraction form
    1,391,572.80/2,087,359.20 = 949,204.80/x
  3. Step 3: Cross multiply
    1,391,572.80x = 2,087,359.20 × 949,204.80
  4. Step 4: Simplify right side
    1,391,572.80x = 1,981,331,371,964.16
  5. Step 5: Solve for x
    x = 1,981,331,371,964.16/1,391,572.80
  6. Step 6: Final answer
    x = 1,423,807.20

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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.