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Finding the Fourth Proportional to 704,517.97, 972,326.43 and 394,538.59

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Solution

The fourth proportional to 704,517.97, 972,326.43 and 394,538.59 is: 544,514.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,517.97 : 972,326.43 = 394,538.59 : x
  2. Step 2: Convert to fraction form
    704,517.97/972,326.43 = 394,538.59/x
  3. Step 3: Cross multiply
    704,517.97x = 972,326.43 × 394,538.59
  4. Step 4: Simplify right side
    704,517.97x = 383,620,298,711.93
  5. Step 5: Solve for x
    x = 383,620,298,711.93/704,517.97
  6. Step 6: Final answer
    x = 544,514.57

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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.