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Finding the Fourth Proportional to 654,010.12, 902,539.92 and 395,893

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Solution

The fourth proportional to 654,010.12, 902,539.92 and 395,893 is: 546,335.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,010.12 : 902,539.92 = 395,893 : x
  2. Step 2: Convert to fraction form
    654,010.12/902,539.92 = 395,893/x
  3. Step 3: Cross multiply
    654,010.12x = 902,539.92 × 395,893
  4. Step 4: Simplify right side
    654,010.12x = 357,309,236,548.56
  5. Step 5: Solve for x
    x = 357,309,236,548.56/654,010.12
  6. Step 6: Final answer
    x = 546,335.94

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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.