Home / 720,420.24-1,080,630.39-271,241.88

Finding the Fourth Proportional to 720,420.24, 1,080,630.39 and 271,241.88

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Solution

The fourth proportional to 720,420.24, 1,080,630.39 and 271,241.88 is: 406,862.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,420.24 : 1,080,630.39 = 271,241.88 : x
  2. Step 2: Convert to fraction form
    720,420.24/1,080,630.39 = 271,241.88/x
  3. Step 3: Cross multiply
    720,420.24x = 1,080,630.39 × 271,241.88
  4. Step 4: Simplify right side
    720,420.24x = 293,112,218,568.73
  5. Step 5: Solve for x
    x = 293,112,218,568.73/720,420.24
  6. Step 6: Final answer
    x = 406,862.83

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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.