Home / 644,048.20-966,072.30-325,183.60

Finding the Fourth Proportional to 644,048.20, 966,072.30 and 325,183.60

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Solution

The fourth proportional to 644,048.20, 966,072.30 and 325,183.60 is: 487,775.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,048.20 : 966,072.30 = 325,183.60 : x
  2. Step 2: Convert to fraction form
    644,048.20/966,072.30 = 325,183.60/x
  3. Step 3: Cross multiply
    644,048.20x = 966,072.30 × 325,183.60
  4. Step 4: Simplify right side
    644,048.20x = 314,150,868,374.28
  5. Step 5: Solve for x
    x = 314,150,868,374.28/644,048.20
  6. Step 6: Final answer
    x = 487,775.40

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Double scale
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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.