Home / 3,261,772.20-4,892,658.30-865,986.60

Finding the Fourth Proportional to 3,261,772.20, 4,892,658.30 and 865,986.60

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Solution

The fourth proportional to 3,261,772.20, 4,892,658.30 and 865,986.60 is: 1,298,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261,772.20 : 4,892,658.30 = 865,986.60 : x
  2. Step 2: Convert to fraction form
    3,261,772.20/4,892,658.30 = 865,986.60/x
  3. Step 3: Cross multiply
    3,261,772.20x = 4,892,658.30 × 865,986.60
  4. Step 4: Simplify right side
    3,261,772.20x = 4,236,976,526,178.78
  5. Step 5: Solve for x
    x = 4,236,976,526,178.78/3,261,772.20
  6. Step 6: Final answer
    x = 1,298,979.90

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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.