Home / 1,247,939.30-1,722,156.36-674,979.50

Finding the Fourth Proportional to 1,247,939.30, 1,722,156.36 and 674,979.50

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Solution

The fourth proportional to 1,247,939.30, 1,722,156.36 and 674,979.50 is: 931,471.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,939.30 : 1,722,156.36 = 674,979.50 : x
  2. Step 2: Convert to fraction form
    1,247,939.30/1,722,156.36 = 674,979.50/x
  3. Step 3: Cross multiply
    1,247,939.30x = 1,722,156.36 × 674,979.50
  4. Step 4: Simplify right side
    1,247,939.30x = 1,162,420,238,794.62
  5. Step 5: Solve for x
    x = 1,162,420,238,794.62/1,247,939.30
  6. Step 6: Final answer
    x = 931,471.78

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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.