Home / 1,146,182.40-1,581,638.40-687,398.40

Finding the Fourth Proportional to 1,146,182.40, 1,581,638.40 and 687,398.40

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Solution

The fourth proportional to 1,146,182.40, 1,581,638.40 and 687,398.40 is: 948,553.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,182.40 : 1,581,638.40 = 687,398.40 : x
  2. Step 2: Convert to fraction form
    1,146,182.40/1,581,638.40 = 687,398.40/x
  3. Step 3: Cross multiply
    1,146,182.40x = 1,581,638.40 × 687,398.40
  4. Step 4: Simplify right side
    1,146,182.40x = 1,087,215,705,538.56
  5. Step 5: Solve for x
    x = 1,087,215,705,538.56/1,146,182.40
  6. Step 6: Final answer
    x = 948,553.83

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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.