Home / 792,128.70-1,188,193.05-372,224.70

Finding the Fourth Proportional to 792,128.70, 1,188,193.05 and 372,224.70

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Solution

The fourth proportional to 792,128.70, 1,188,193.05 and 372,224.70 is: 558,337.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,128.70 : 1,188,193.05 = 372,224.70 : x
  2. Step 2: Convert to fraction form
    792,128.70/1,188,193.05 = 372,224.70/x
  3. Step 3: Cross multiply
    792,128.70x = 1,188,193.05 × 372,224.70
  4. Step 4: Simplify right side
    792,128.70x = 442,274,801,578.34
  5. Step 5: Solve for x
    x = 442,274,801,578.34/792,128.70
  6. Step 6: Final answer
    x = 558,337.05

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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.