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Finding the Fourth Proportional to 636,111.80, 954,167.70 and 321,183.80

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Solution

The fourth proportional to 636,111.80, 954,167.70 and 321,183.80 is: 481,775.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,111.80 : 954,167.70 = 321,183.80 : x
  2. Step 2: Convert to fraction form
    636,111.80/954,167.70 = 321,183.80/x
  3. Step 3: Cross multiply
    636,111.80x = 954,167.70 × 321,183.80
  4. Step 4: Simplify right side
    636,111.80x = 306,463,207,723.26
  5. Step 5: Solve for x
    x = 306,463,207,723.26/636,111.80
  6. Step 6: Final answer
    x = 481,775.70

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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.