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Finding the Fourth Proportional to 720,194.13, 1,080,969.17 and 365,462.73

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Solution

The fourth proportional to 720,194.13, 1,080,969.17 and 365,462.73 is: 548,538.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,194.13 : 1,080,969.17 = 365,462.73 : x
  2. Step 2: Convert to fraction form
    720,194.13/1,080,969.17 = 365,462.73/x
  3. Step 3: Cross multiply
    720,194.13x = 1,080,969.17 × 365,462.73
  4. Step 4: Simplify right side
    720,194.13x = 395,053,942,086.72
  5. Step 5: Solve for x
    x = 395,053,942,086.72/720,194.13
  6. Step 6: Final answer
    x = 548,538.13

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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.