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Finding the Fourth Proportional to 542,206.28, 813,479.41 and 326,300.63

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Solution

The fourth proportional to 542,206.28, 813,479.41 and 326,300.63 is: 489,553.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,206.28 : 813,479.41 = 326,300.63 : x
  2. Step 2: Convert to fraction form
    542,206.28/813,479.41 = 326,300.63/x
  3. Step 3: Cross multiply
    542,206.28x = 813,479.41 × 326,300.63
  4. Step 4: Simplify right side
    542,206.28x = 265,438,840,767.98
  5. Step 5: Solve for x
    x = 265,438,840,767.98/542,206.28
  6. Step 6: Final answer
    x = 489,553.24

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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.