Home / 1,425,509.52-2,138,966.80-667,402.28

Finding the Fourth Proportional to 1,425,509.52, 2,138,966.80 and 667,402.28

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Solution

The fourth proportional to 1,425,509.52, 2,138,966.80 and 667,402.28 is: 1,001,432.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,509.52 : 2,138,966.80 = 667,402.28 : x
  2. Step 2: Convert to fraction form
    1,425,509.52/2,138,966.80 = 667,402.28/x
  3. Step 3: Cross multiply
    1,425,509.52x = 2,138,966.80 × 667,402.28
  4. Step 4: Simplify right side
    1,425,509.52x = 1,427,551,319,164.30
  5. Step 5: Solve for x
    x = 1,427,551,319,164.30/1,425,509.52
  6. Step 6: Final answer
    x = 1,001,432.33

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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.