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Finding the Fourth Proportional to 434,425.20, 650,860.20 and 372,217.20

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Solution

The fourth proportional to 434,425.20, 650,860.20 and 372,217.20 is: 557,659.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,425.20 : 650,860.20 = 372,217.20 : x
  2. Step 2: Convert to fraction form
    434,425.20/650,860.20 = 372,217.20/x
  3. Step 3: Cross multiply
    434,425.20x = 650,860.20 × 372,217.20
  4. Step 4: Simplify right side
    434,425.20x = 242,261,361,235.44
  5. Step 5: Solve for x
    x = 242,261,361,235.44/434,425.20
  6. Step 6: Final answer
    x = 557,659.55

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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.