Home / 1,129,078.17-1,557,419.20-669,867.71

Finding the Fourth Proportional to 1,129,078.17, 1,557,419.20 and 669,867.71

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Solution

The fourth proportional to 1,129,078.17, 1,557,419.20 and 669,867.71 is: 923,996.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,078.17 : 1,557,419.20 = 669,867.71 : x
  2. Step 2: Convert to fraction form
    1,129,078.17/1,557,419.20 = 669,867.71/x
  3. Step 3: Cross multiply
    1,129,078.17x = 1,557,419.20 × 669,867.71
  4. Step 4: Simplify right side
    1,129,078.17x = 1,043,264,823,552.27
  5. Step 5: Solve for x
    x = 1,043,264,823,552.27/1,129,078.17
  6. Step 6: Final answer
    x = 923,996.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.