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Finding the Fourth Proportional to 818,672.80, 1,228,009.20 and 227,696.80

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Solution

The fourth proportional to 818,672.80, 1,228,009.20 and 227,696.80 is: 341,545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,672.80 : 1,228,009.20 = 227,696.80 : x
  2. Step 2: Convert to fraction form
    818,672.80/1,228,009.20 = 227,696.80/x
  3. Step 3: Cross multiply
    818,672.80x = 1,228,009.20 × 227,696.80
  4. Step 4: Simplify right side
    818,672.80x = 279,613,765,210.56
  5. Step 5: Solve for x
    x = 279,613,765,210.56/818,672.80
  6. Step 6: Final answer
    x = 341,545.20

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.