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Finding the Fourth Proportional to 505,087.20, 757,630.80 and 372,226.95

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Solution

The fourth proportional to 505,087.20, 757,630.80 and 372,226.95 is: 558,340.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,087.20 : 757,630.80 = 372,226.95 : x
  2. Step 2: Convert to fraction form
    505,087.20/757,630.80 = 372,226.95/x
  3. Step 3: Cross multiply
    505,087.20x = 757,630.80 × 372,226.95
  4. Step 4: Simplify right side
    505,087.20x = 282,010,601,910.06
  5. Step 5: Solve for x
    x = 282,010,601,910.06/505,087.20
  6. Step 6: Final answer
    x = 558,340.43

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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.