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Finding the Fourth Proportional to 1,006,837.60, 1,511,082.60 and 998,964.40

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Solution

The fourth proportional to 1,006,837.60, 1,511,082.60 and 998,964.40 is: 1,499,266.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,837.60 : 1,511,082.60 = 998,964.40 : x
  2. Step 2: Convert to fraction form
    1,006,837.60/1,511,082.60 = 998,964.40/x
  3. Step 3: Cross multiply
    1,006,837.60x = 1,511,082.60 × 998,964.40
  4. Step 4: Simplify right side
    1,006,837.60x = 1,509,517,722,859.44
  5. Step 5: Solve for x
    x = 1,509,517,722,859.44/1,006,837.60
  6. Step 6: Final answer
    x = 1,499,266.34

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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.