Home / 720,381.20-1,079,712.92-335,613.92

Finding the Fourth Proportional to 720,381.20, 1,079,712.92 and 335,613.92

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Solution

The fourth proportional to 720,381.20, 1,079,712.92 and 335,613.92 is: 503,020.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,381.20 : 1,079,712.92 = 335,613.92 : x
  2. Step 2: Convert to fraction form
    720,381.20/1,079,712.92 = 335,613.92/x
  3. Step 3: Cross multiply
    720,381.20x = 1,079,712.92 × 335,613.92
  4. Step 4: Simplify right side
    720,381.20x = 362,366,680,996.32
  5. Step 5: Solve for x
    x = 362,366,680,996.32/720,381.20
  6. Step 6: Final answer
    x = 503,020.74

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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.