Home / 792,127.20-1,188,190.80-372,223.20

Finding the Fourth Proportional to 792,127.20, 1,188,190.80 and 372,223.20

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Solution

The fourth proportional to 792,127.20, 1,188,190.80 and 372,223.20 is: 558,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,127.20 : 1,188,190.80 = 372,223.20 : x
  2. Step 2: Convert to fraction form
    792,127.20/1,188,190.80 = 372,223.20/x
  3. Step 3: Cross multiply
    792,127.20x = 1,188,190.80 × 372,223.20
  4. Step 4: Simplify right side
    792,127.20x = 442,272,181,786.56
  5. Step 5: Solve for x
    x = 442,272,181,786.56/792,127.20
  6. Step 6: Final answer
    x = 558,334.80

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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.