Home / 792,129.20-1,188,193.80-372,225.20

Finding the Fourth Proportional to 792,129.20, 1,188,193.80 and 372,225.20

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Solution

The fourth proportional to 792,129.20, 1,188,193.80 and 372,225.20 is: 558,337.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,129.20 : 1,188,193.80 = 372,225.20 : x
  2. Step 2: Convert to fraction form
    792,129.20/1,188,193.80 = 372,225.20/x
  3. Step 3: Cross multiply
    792,129.20x = 1,188,193.80 × 372,225.20
  4. Step 4: Simplify right side
    792,129.20x = 442,275,674,843.76
  5. Step 5: Solve for x
    x = 442,275,674,843.76/792,129.20
  6. Step 6: Final answer
    x = 558,337.80

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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.