Home / 878,769.64-1,318,144.94-666,839.09

Finding the Fourth Proportional to 878,769.64, 1,318,144.94 and 666,839.09

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Solution

The fourth proportional to 878,769.64, 1,318,144.94 and 666,839.09 is: 1,000,251.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,769.64 : 1,318,144.94 = 666,839.09 : x
  2. Step 2: Convert to fraction form
    878,769.64/1,318,144.94 = 666,839.09/x
  3. Step 3: Cross multiply
    878,769.64x = 1,318,144.94 × 666,839.09
  4. Step 4: Simplify right side
    878,769.64x = 878,990,567,324.95
  5. Step 5: Solve for x
    x = 878,990,567,324.95/878,769.64
  6. Step 6: Final answer
    x = 1,000,251.41

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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.