Home / 1,425,501.52-2,138,954.82-667,394.32

Finding the Fourth Proportional to 1,425,501.52, 2,138,954.82 and 667,394.32

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Solution

The fourth proportional to 1,425,501.52, 2,138,954.82 and 667,394.32 is: 1,001,420.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,501.52 : 2,138,954.82 = 667,394.32 : x
  2. Step 2: Convert to fraction form
    1,425,501.52/2,138,954.82 = 667,394.32/x
  3. Step 3: Cross multiply
    1,425,501.52x = 2,138,954.82 × 667,394.32
  4. Step 4: Simplify right side
    1,425,501.52x = 1,427,526,297,604.62
  5. Step 5: Solve for x
    x = 1,427,526,297,604.62/1,425,501.52
  6. Step 6: Final answer
    x = 1,001,420.40

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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.