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Finding the Fourth Proportional to 478,761.36, 660,447.96 and 365,387.28

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Solution

The fourth proportional to 478,761.36, 660,447.96 and 365,387.28 is: 504,049.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,761.36 : 660,447.96 = 365,387.28 : x
  2. Step 2: Convert to fraction form
    478,761.36/660,447.96 = 365,387.28/x
  3. Step 3: Cross multiply
    478,761.36x = 660,447.96 × 365,387.28
  4. Step 4: Simplify right side
    478,761.36x = 241,319,283,685.95
  5. Step 5: Solve for x
    x = 241,319,283,685.95/478,761.36
  6. Step 6: Final answer
    x = 504,049.21

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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.