Home / 1,098,171.08-1,647,540.54-643,146.92

Finding the Fourth Proportional to 1,098,171.08, 1,647,540.54 and 643,146.92

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Solution

The fourth proportional to 1,098,171.08, 1,647,540.54 and 643,146.92 is: 964,886.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,171.08 : 1,647,540.54 = 643,146.92 : x
  2. Step 2: Convert to fraction form
    1,098,171.08/1,647,540.54 = 643,146.92/x
  3. Step 3: Cross multiply
    1,098,171.08x = 1,647,540.54 × 643,146.92
  4. Step 4: Simplify right side
    1,098,171.08x = 1,059,610,623,876.14
  5. Step 5: Solve for x
    x = 1,059,610,623,876.14/1,098,171.08
  6. Step 6: Final answer
    x = 964,886.66

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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.