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Finding the Fourth Proportional to 654,108.47, 902,597.41 and 392,449.88

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Solution

The fourth proportional to 654,108.47, 902,597.41 and 392,449.88 is: 541,537.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,108.47 : 902,597.41 = 392,449.88 : x
  2. Step 2: Convert to fraction form
    654,108.47/902,597.41 = 392,449.88/x
  3. Step 3: Cross multiply
    654,108.47x = 902,597.41 × 392,449.88
  4. Step 4: Simplify right side
    654,108.47x = 354,224,243,280.56
  5. Step 5: Solve for x
    x = 354,224,243,280.56/654,108.47
  6. Step 6: Final answer
    x = 541,537.47

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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.