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Finding the Fourth Proportional to 542,479.70, 813,854.84 and 382,867.40

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Solution

The fourth proportional to 542,479.70, 813,854.84 and 382,867.40 is: 574,396.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,479.70 : 813,854.84 = 382,867.40 : x
  2. Step 2: Convert to fraction form
    542,479.70/813,854.84 = 382,867.40/x
  3. Step 3: Cross multiply
    542,479.70x = 813,854.84 × 382,867.40
  4. Step 4: Simplify right side
    542,479.70x = 311,598,480,584.61
  5. Step 5: Solve for x
    x = 311,598,480,584.61/542,479.70
  6. Step 6: Final answer
    x = 574,396.58

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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.