Home / 665,713.40-998,570.10-222,481.40

Finding the Fourth Proportional to 665,713.40, 998,570.10 and 222,481.40

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Solution

The fourth proportional to 665,713.40, 998,570.10 and 222,481.40 is: 333,722.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,713.40 : 998,570.10 = 222,481.40 : x
  2. Step 2: Convert to fraction form
    665,713.40/998,570.10 = 222,481.40/x
  3. Step 3: Cross multiply
    665,713.40x = 998,570.10 × 222,481.40
  4. Step 4: Simplify right side
    665,713.40x = 222,163,273,846.14
  5. Step 5: Solve for x
    x = 222,163,273,846.14/665,713.40
  6. Step 6: Final answer
    x = 333,722.10

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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.