Home / 2,123,487.36-3,186,540-861,325.92

Finding the Fourth Proportional to 2,123,487.36, 3,186,540 and 861,325.92

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Solution

The fourth proportional to 2,123,487.36, 3,186,540 and 861,325.92 is: 1,292,519.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,123,487.36 : 3,186,540 = 861,325.92 : x
  2. Step 2: Convert to fraction form
    2,123,487.36/3,186,540 = 861,325.92/x
  3. Step 3: Cross multiply
    2,123,487.36x = 3,186,540 × 861,325.92
  4. Step 4: Simplify right side
    2,123,487.36x = 2,744,649,497,116.80
  5. Step 5: Solve for x
    x = 2,744,649,497,116.80/2,123,487.36
  6. Step 6: Final answer
    x = 1,292,519.82

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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.