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Finding the Fourth Proportional to 542,556.20, 813,834.30 and 453,909.80

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Solution

The fourth proportional to 542,556.20, 813,834.30 and 453,909.80 is: 680,864.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,556.20 : 813,834.30 = 453,909.80 : x
  2. Step 2: Convert to fraction form
    542,556.20/813,834.30 = 453,909.80/x
  3. Step 3: Cross multiply
    542,556.20x = 813,834.30 × 453,909.80
  4. Step 4: Simplify right side
    542,556.20x = 369,407,364,346.14
  5. Step 5: Solve for x
    x = 369,407,364,346.14/542,556.20
  6. Step 6: Final answer
    x = 680,864.70

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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.