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Finding the Fourth Proportional to 485,447.52, 669,940.26 and 270,589.14

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Solution

The fourth proportional to 485,447.52, 669,940.26 and 270,589.14 is: 373,425.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,447.52 : 669,940.26 = 270,589.14 : x
  2. Step 2: Convert to fraction form
    485,447.52/669,940.26 = 270,589.14/x
  3. Step 3: Cross multiply
    485,447.52x = 669,940.26 × 270,589.14
  4. Step 4: Simplify right side
    485,447.52x = 181,278,558,804.78
  5. Step 5: Solve for x
    x = 181,278,558,804.78/485,447.52
  6. Step 6: Final answer
    x = 373,425.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.