Home / 826,078.28-1,239,472.62-447,269.72

Finding the Fourth Proportional to 826,078.28, 1,239,472.62 and 447,269.72

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Solution

The fourth proportional to 826,078.28, 1,239,472.62 and 447,269.72 is: 671,096.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,078.28 : 1,239,472.62 = 447,269.72 : x
  2. Step 2: Convert to fraction form
    826,078.28/1,239,472.62 = 447,269.72/x
  3. Step 3: Cross multiply
    826,078.28x = 1,239,472.62 × 447,269.72
  4. Step 4: Simplify right side
    826,078.28x = 554,378,565,497.70
  5. Step 5: Solve for x
    x = 554,378,565,497.70/826,078.28
  6. Step 6: Final answer
    x = 671,096.90

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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.