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Finding the Fourth Proportional to 704,884.62, 972,659.88 and 394,743.93

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Solution

The fourth proportional to 704,884.62, 972,659.88 and 394,743.93 is: 544,701.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,884.62 : 972,659.88 = 394,743.93 : x
  2. Step 2: Convert to fraction form
    704,884.62/972,659.88 = 394,743.93/x
  3. Step 3: Cross multiply
    704,884.62x = 972,659.88 × 394,743.93
  4. Step 4: Simplify right side
    704,884.62x = 383,951,584,575.61
  5. Step 5: Solve for x
    x = 383,951,584,575.61/704,884.62
  6. Step 6: Final answer
    x = 544,701.32

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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.