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Finding the Fourth Proportional to 667,418.52, 921,060.56 and 365,612.52

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Solution

The fourth proportional to 667,418.52, 921,060.56 and 365,612.52 is: 504,557.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,418.52 : 921,060.56 = 365,612.52 : x
  2. Step 2: Convert to fraction form
    667,418.52/921,060.56 = 365,612.52/x
  3. Step 3: Cross multiply
    667,418.52x = 921,060.56 × 365,612.52
  4. Step 4: Simplify right side
    667,418.52x = 336,751,272,414.21
  5. Step 5: Solve for x
    x = 336,751,272,414.21/667,418.52
  6. Step 6: Final answer
    x = 504,557.88

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1.5x scale

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.