Home / 913,821.30-1,369,233.78-647,102.88

Finding the Fourth Proportional to 913,821.30, 1,369,233.78 and 647,102.88

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Solution

The fourth proportional to 913,821.30, 1,369,233.78 and 647,102.88 is: 969,593.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,821.30 : 1,369,233.78 = 647,102.88 : x
  2. Step 2: Convert to fraction form
    913,821.30/1,369,233.78 = 647,102.88/x
  3. Step 3: Cross multiply
    913,821.30x = 1,369,233.78 × 647,102.88
  4. Step 4: Simplify right side
    913,821.30x = 886,035,122,431.29
  5. Step 5: Solve for x
    x = 886,035,122,431.29/913,821.30
  6. Step 6: Final answer
    x = 969,593.42

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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.