Home / 440,357.11-660,532.17-261,680.83

Finding the Fourth Proportional to 440,357.11, 660,532.17 and 261,680.83

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Solution

The fourth proportional to 440,357.11, 660,532.17 and 261,680.83 is: 392,519.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,357.11 : 660,532.17 = 261,680.83 : x
  2. Step 2: Convert to fraction form
    440,357.11/660,532.17 = 261,680.83/x
  3. Step 3: Cross multiply
    440,357.11x = 660,532.17 × 261,680.83
  4. Step 4: Simplify right side
    440,357.11x = 172,848,604,345.32
  5. Step 5: Solve for x
    x = 172,848,604,345.32/440,357.11
  6. Step 6: Final answer
    x = 392,519.17

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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.