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Finding the Fourth Proportional to 418,499.32, 577,522.26 and 227,517.48

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Solution

The fourth proportional to 418,499.32, 577,522.26 and 227,517.48 is: 313,970.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,499.32 : 577,522.26 = 227,517.48 : x
  2. Step 2: Convert to fraction form
    418,499.32/577,522.26 = 227,517.48/x
  3. Step 3: Cross multiply
    418,499.32x = 577,522.26 × 227,517.48
  4. Step 4: Simplify right side
    418,499.32x = 131,396,409,239.11
  5. Step 5: Solve for x
    x = 131,396,409,239.11/418,499.32
  6. Step 6: Final answer
    x = 313,970.42

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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.