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Finding the Fourth Proportional to 482,625, 666,040.29 and 291,601.47

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Solution

The fourth proportional to 482,625, 666,040.29 and 291,601.47 is: 402,420.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,625 : 666,040.29 = 291,601.47 : x
  2. Step 2: Convert to fraction form
    482,625/666,040.29 = 291,601.47/x
  3. Step 3: Cross multiply
    482,625x = 666,040.29 × 291,601.47
  4. Step 4: Simplify right side
    482,625x = 194,218,327,643.23
  5. Step 5: Solve for x
    x = 194,218,327,643.23/482,625
  6. Step 6: Final answer
    x = 402,420.78

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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.