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Finding the Fourth Proportional to 513,092.40, 768,472.20 and 263,482.80

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Solution

The fourth proportional to 513,092.40, 768,472.20 and 263,482.80 is: 394,625.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,092.40 : 768,472.20 = 263,482.80 : x
  2. Step 2: Convert to fraction form
    513,092.40/768,472.20 = 263,482.80/x
  3. Step 3: Cross multiply
    513,092.40x = 768,472.20 × 263,482.80
  4. Step 4: Simplify right side
    513,092.40x = 202,479,206,978.16
  5. Step 5: Solve for x
    x = 202,479,206,978.16/513,092.40
  6. Step 6: Final answer
    x = 394,625.23

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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.