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Finding the Fourth Proportional to 663,092.28, 915,067.32 and 361,286.28

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Solution

The fourth proportional to 663,092.28, 915,067.32 and 361,286.28 is: 498,575.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,092.28 : 915,067.32 = 361,286.28 : x
  2. Step 2: Convert to fraction form
    663,092.28/915,067.32 = 361,286.28/x
  3. Step 3: Cross multiply
    663,092.28x = 915,067.32 × 361,286.28
  4. Step 4: Simplify right side
    663,092.28x = 330,601,267,992.37
  5. Step 5: Solve for x
    x = 330,601,267,992.37/663,092.28
  6. Step 6: Final answer
    x = 498,575.05

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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.