Home / 792,144.30-1,188,216.45-259,719.15

Finding the Fourth Proportional to 792,144.30, 1,188,216.45 and 259,719.15

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Solution

The fourth proportional to 792,144.30, 1,188,216.45 and 259,719.15 is: 389,578.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,144.30 : 1,188,216.45 = 259,719.15 : x
  2. Step 2: Convert to fraction form
    792,144.30/1,188,216.45 = 259,719.15/x
  3. Step 3: Cross multiply
    792,144.30x = 1,188,216.45 × 259,719.15
  4. Step 4: Simplify right side
    792,144.30x = 308,602,566,410.02
  5. Step 5: Solve for x
    x = 308,602,566,410.02/792,144.30
  6. Step 6: Final answer
    x = 389,578.73

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Half scale
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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.