Home / 792,077.40-1,188,116.10-259,615.80

Finding the Fourth Proportional to 792,077.40, 1,188,116.10 and 259,615.80

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Solution

The fourth proportional to 792,077.40, 1,188,116.10 and 259,615.80 is: 389,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,077.40 : 1,188,116.10 = 259,615.80 : x
  2. Step 2: Convert to fraction form
    792,077.40/1,188,116.10 = 259,615.80/x
  3. Step 3: Cross multiply
    792,077.40x = 1,188,116.10 × 259,615.80
  4. Step 4: Simplify right side
    792,077.40x = 308,453,711,794.38
  5. Step 5: Solve for x
    x = 308,453,711,794.38/792,077.40
  6. Step 6: Final answer
    x = 389,423.70

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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.