Home / 1,281,679.20-1,922,691.60-440,488.80

Finding the Fourth Proportional to 1,281,679.20, 1,922,691.60 and 440,488.80

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Solution

The fourth proportional to 1,281,679.20, 1,922,691.60 and 440,488.80 is: 660,792.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,679.20 : 1,922,691.60 = 440,488.80 : x
  2. Step 2: Convert to fraction form
    1,281,679.20/1,922,691.60 = 440,488.80/x
  3. Step 3: Cross multiply
    1,281,679.20x = 1,922,691.60 × 440,488.80
  4. Step 4: Simplify right side
    1,281,679.20x = 846,924,115,654.08
  5. Step 5: Solve for x
    x = 846,924,115,654.08/1,281,679.20
  6. Step 6: Final answer
    x = 660,792.59

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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.