Home / 821,633.04-1,232,449.26-309,394.56

Finding the Fourth Proportional to 821,633.04, 1,232,449.26 and 309,394.56

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Solution

The fourth proportional to 821,633.04, 1,232,449.26 and 309,394.56 is: 464,091.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,633.04 : 1,232,449.26 = 309,394.56 : x
  2. Step 2: Convert to fraction form
    821,633.04/1,232,449.26 = 309,394.56/x
  3. Step 3: Cross multiply
    821,633.04x = 1,232,449.26 × 309,394.56
  4. Step 4: Simplify right side
    821,633.04x = 381,313,096,520.03
  5. Step 5: Solve for x
    x = 381,313,096,520.03/821,633.04
  6. Step 6: Final answer
    x = 464,091.73

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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.