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Finding the Fourth Proportional to 542,557.20, 813,835.80 and 453,910.80

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Solution

The fourth proportional to 542,557.20, 813,835.80 and 453,910.80 is: 680,866.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,557.20 : 813,835.80 = 453,910.80 : x
  2. Step 2: Convert to fraction form
    542,557.20/813,835.80 = 453,910.80/x
  3. Step 3: Cross multiply
    542,557.20x = 813,835.80 × 453,910.80
  4. Step 4: Simplify right side
    542,557.20x = 369,408,859,046.64
  5. Step 5: Solve for x
    x = 369,408,859,046.64/542,557.20
  6. Step 6: Final answer
    x = 680,866.20

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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.