Home / 792,145.40-1,188,218.10-259,683.80

Finding the Fourth Proportional to 792,145.40, 1,188,218.10 and 259,683.80

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Solution

The fourth proportional to 792,145.40, 1,188,218.10 and 259,683.80 is: 389,525.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,145.40 : 1,188,218.10 = 259,683.80 : x
  2. Step 2: Convert to fraction form
    792,145.40/1,188,218.10 = 259,683.80/x
  3. Step 3: Cross multiply
    792,145.40x = 1,188,218.10 × 259,683.80
  4. Step 4: Simplify right side
    792,145.40x = 308,560,991,436.78
  5. Step 5: Solve for x
    x = 308,560,991,436.78/792,145.40
  6. Step 6: Final answer
    x = 389,525.70

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Double scale
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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.