Home / 1,386,958.28-2,080,665.11-427,414.04

Finding the Fourth Proportional to 1,386,958.28, 2,080,665.11 and 427,414.04

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Solution

The fourth proportional to 1,386,958.28, 2,080,665.11 and 427,414.04 is: 641,191.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,958.28 : 2,080,665.11 = 427,414.04 : x
  2. Step 2: Convert to fraction form
    1,386,958.28/2,080,665.11 = 427,414.04/x
  3. Step 3: Cross multiply
    1,386,958.28x = 2,080,665.11 × 427,414.04
  4. Step 4: Simplify right side
    1,386,958.28x = 889,305,486,822.34
  5. Step 5: Solve for x
    x = 889,305,486,822.34/1,386,958.28
  6. Step 6: Final answer
    x = 641,191.23

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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.