Home / 1,098,033.27-1,647,333.87-643,008.78

Finding the Fourth Proportional to 1,098,033.27, 1,647,333.87 and 643,008.78

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Solution

The fourth proportional to 1,098,033.27, 1,647,333.87 and 643,008.78 is: 964,679.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,033.27 : 1,647,333.87 = 643,008.78 : x
  2. Step 2: Convert to fraction form
    1,098,033.27/1,647,333.87 = 643,008.78/x
  3. Step 3: Cross multiply
    1,098,033.27x = 1,647,333.87 × 643,008.78
  4. Step 4: Simplify right side
    1,098,033.27x = 1,059,250,142,001.38
  5. Step 5: Solve for x
    x = 1,059,250,142,001.38/1,098,033.27
  6. Step 6: Final answer
    x = 964,679.46

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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.