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Finding the Fourth Proportional to 644,676.70, 967,015.05 and 325,812.10

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Solution

The fourth proportional to 644,676.70, 967,015.05 and 325,812.10 is: 488,718.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,676.70 : 967,015.05 = 325,812.10 : x
  2. Step 2: Convert to fraction form
    644,676.70/967,015.05 = 325,812.10/x
  3. Step 3: Cross multiply
    644,676.70x = 967,015.05 × 325,812.10
  4. Step 4: Simplify right side
    644,676.70x = 315,065,204,172.11
  5. Step 5: Solve for x
    x = 315,065,204,172.11/644,676.70
  6. Step 6: Final answer
    x = 488,718.15

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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.