Home / 821,787.12-1,232,680.68-222,748.38

Finding the Fourth Proportional to 821,787.12, 1,232,680.68 and 222,748.38

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Solution

The fourth proportional to 821,787.12, 1,232,680.68 and 222,748.38 is: 334,122.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,787.12 : 1,232,680.68 = 222,748.38 : x
  2. Step 2: Convert to fraction form
    821,787.12/1,232,680.68 = 222,748.38/x
  3. Step 3: Cross multiply
    821,787.12x = 1,232,680.68 × 222,748.38
  4. Step 4: Simplify right side
    821,787.12x = 274,577,624,527.30
  5. Step 5: Solve for x
    x = 274,577,624,527.30/821,787.12
  6. Step 6: Final answer
    x = 334,122.57

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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.