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Finding the Fourth Proportional to 454,998.80, 683,016.60 and 268,115.60

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Solution

The fourth proportional to 454,998.80, 683,016.60 and 268,115.60 is: 402,478.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,998.80 : 683,016.60 = 268,115.60 : x
  2. Step 2: Convert to fraction form
    454,998.80/683,016.60 = 268,115.60/x
  3. Step 3: Cross multiply
    454,998.80x = 683,016.60 × 268,115.60
  4. Step 4: Simplify right side
    454,998.80x = 183,127,405,518.96
  5. Step 5: Solve for x
    x = 183,127,405,518.96/454,998.80
  6. Step 6: Final answer
    x = 402,478.88

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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.