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Finding the Fourth Proportional to 568,729.34, 785,166.82 and 394,551.20

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Solution

The fourth proportional to 568,729.34, 785,166.82 and 394,551.20 is: 544,702.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,729.34 : 785,166.82 = 394,551.20 : x
  2. Step 2: Convert to fraction form
    568,729.34/785,166.82 = 394,551.20/x
  3. Step 3: Cross multiply
    568,729.34x = 785,166.82 × 394,551.20
  4. Step 4: Simplify right side
    568,729.34x = 309,788,511,031.18
  5. Step 5: Solve for x
    x = 309,788,511,031.18/568,729.34
  6. Step 6: Final answer
    x = 544,702.88

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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.