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Finding the Fourth Proportional to 982,991.80, 1,471,659.18 and 880,419.88

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Solution

The fourth proportional to 982,991.80, 1,471,659.18 and 880,419.88 is: 1,318,096.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,991.80 : 1,471,659.18 = 880,419.88 : x
  2. Step 2: Convert to fraction form
    982,991.80/1,471,659.18 = 880,419.88/x
  3. Step 3: Cross multiply
    982,991.80x = 1,471,659.18 × 880,419.88
  4. Step 4: Simplify right side
    982,991.80x = 1,295,677,998,656.50
  5. Step 5: Solve for x
    x = 1,295,677,998,656.50/982,991.80
  6. Step 6: Final answer
    x = 1,318,096.45

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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.