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Finding the Fourth Proportional to 542,855.30, 814,282.95 and 262,919.30

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Solution

The fourth proportional to 542,855.30, 814,282.95 and 262,919.30 is: 394,378.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,855.30 : 814,282.95 = 262,919.30 : x
  2. Step 2: Convert to fraction form
    542,855.30/814,282.95 = 262,919.30/x
  3. Step 3: Cross multiply
    542,855.30x = 814,282.95 × 262,919.30
  4. Step 4: Simplify right side
    542,855.30x = 214,090,703,215.94
  5. Step 5: Solve for x
    x = 214,090,703,215.94/542,855.30
  6. Step 6: Final answer
    x = 394,378.95

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Similar ratio
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1.5x scale

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.