Home / 1,092,122.91-1,638,233.54-418,029.38

Finding the Fourth Proportional to 1,092,122.91, 1,638,233.54 and 418,029.38

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Solution

The fourth proportional to 1,092,122.91, 1,638,233.54 and 418,029.38 is: 627,062.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,122.91 : 1,638,233.54 = 418,029.38 : x
  2. Step 2: Convert to fraction form
    1,092,122.91/1,638,233.54 = 418,029.38/x
  3. Step 3: Cross multiply
    1,092,122.91x = 1,638,233.54 × 418,029.38
  4. Step 4: Simplify right side
    1,092,122.91x = 684,829,740,740.09
  5. Step 5: Solve for x
    x = 684,829,740,740.09/1,092,122.91
  6. Step 6: Final answer
    x = 627,062.88

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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.