Home / 645,251.20-967,747.20-308,291.20

Finding the Fourth Proportional to 645,251.20, 967,747.20 and 308,291.20

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Solution

The fourth proportional to 645,251.20, 967,747.20 and 308,291.20 is: 462,374.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,251.20 : 967,747.20 = 308,291.20 : x
  2. Step 2: Convert to fraction form
    645,251.20/967,747.20 = 308,291.20/x
  3. Step 3: Cross multiply
    645,251.20x = 967,747.20 × 308,291.20
  4. Step 4: Simplify right side
    645,251.20x = 298,347,945,584.64
  5. Step 5: Solve for x
    x = 298,347,945,584.64/645,251.20
  6. Step 6: Final answer
    x = 462,374.88

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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.