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Finding the Fourth Proportional to 704,682.52, 972,235.71 and 394,539.39

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Solution

The fourth proportional to 704,682.52, 972,235.71 and 394,539.39 is: 544,337.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,682.52 : 972,235.71 = 394,539.39 : x
  2. Step 2: Convert to fraction form
    704,682.52/972,235.71 = 394,539.39/x
  3. Step 3: Cross multiply
    704,682.52x = 972,235.71 × 394,539.39
  4. Step 4: Simplify right side
    704,682.52x = 383,585,283,959.62
  5. Step 5: Solve for x
    x = 383,585,283,959.62/704,682.52
  6. Step 6: Final answer
    x = 544,337.73

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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.