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Finding the Fourth Proportional to 478,506.52, 660,333.72 and 274,589.52

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Solution

The fourth proportional to 478,506.52, 660,333.72 and 274,589.52 is: 378,930.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,506.52 : 660,333.72 = 274,589.52 : x
  2. Step 2: Convert to fraction form
    478,506.52/660,333.72 = 274,589.52/x
  3. Step 3: Cross multiply
    478,506.52x = 660,333.72 × 274,589.52
  4. Step 4: Simplify right side
    478,506.52x = 181,320,719,214.61
  5. Step 5: Solve for x
    x = 181,320,719,214.61/478,506.52
  6. Step 6: Final answer
    x = 378,930.51

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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.