Home / 813,540.88-1,122,727.62-469,248.76

Finding the Fourth Proportional to 813,540.88, 1,122,727.62 and 469,248.76

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Solution

The fourth proportional to 813,540.88, 1,122,727.62 and 469,248.76 is: 647,587.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,540.88 : 1,122,727.62 = 469,248.76 : x
  2. Step 2: Convert to fraction form
    813,540.88/1,122,727.62 = 469,248.76/x
  3. Step 3: Cross multiply
    813,540.88x = 1,122,727.62 × 469,248.76
  4. Step 4: Simplify right side
    813,540.88x = 526,838,543,502.75
  5. Step 5: Solve for x
    x = 526,838,543,502.75/813,540.88
  6. Step 6: Final answer
    x = 647,587.06

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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.