Home / 792,127.70-1,188,191.55-259,520.30

Finding the Fourth Proportional to 792,127.70, 1,188,191.55 and 259,520.30

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Solution

The fourth proportional to 792,127.70, 1,188,191.55 and 259,520.30 is: 389,280.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,127.70 : 1,188,191.55 = 259,520.30 : x
  2. Step 2: Convert to fraction form
    792,127.70/1,188,191.55 = 259,520.30/x
  3. Step 3: Cross multiply
    792,127.70x = 1,188,191.55 × 259,520.30
  4. Step 4: Simplify right side
    792,127.70x = 308,359,827,513.47
  5. Step 5: Solve for x
    x = 308,359,827,513.47/792,127.70
  6. Step 6: Final answer
    x = 389,280.45

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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.