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Finding the Fourth Proportional to 451,247.20, 676,870.80 and 372,450.40

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Solution

The fourth proportional to 451,247.20, 676,870.80 and 372,450.40 is: 558,675.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,247.20 : 676,870.80 = 372,450.40 : x
  2. Step 2: Convert to fraction form
    451,247.20/676,870.80 = 372,450.40/x
  3. Step 3: Cross multiply
    451,247.20x = 676,870.80 × 372,450.40
  4. Step 4: Simplify right side
    451,247.20x = 252,100,800,208.32
  5. Step 5: Solve for x
    x = 252,100,800,208.32/451,247.20
  6. Step 6: Final answer
    x = 558,675.60

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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.