Home / 677,379.13-1,013,951.21-437,171.95

Finding the Fourth Proportional to 677,379.13, 1,013,951.21 and 437,171.95

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Solution

The fourth proportional to 677,379.13, 1,013,951.21 and 437,171.95 is: 654,391.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,379.13 : 1,013,951.21 = 437,171.95 : x
  2. Step 2: Convert to fraction form
    677,379.13/1,013,951.21 = 437,171.95/x
  3. Step 3: Cross multiply
    677,379.13x = 1,013,951.21 × 437,171.95
  4. Step 4: Simplify right side
    677,379.13x = 443,271,027,680.56
  5. Step 5: Solve for x
    x = 443,271,027,680.56/677,379.13
  6. Step 6: Final answer
    x = 654,391.33

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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.