Home / 821,976.50-1,232,964.75-231,000.50

Finding the Fourth Proportional to 821,976.50, 1,232,964.75 and 231,000.50

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Solution

The fourth proportional to 821,976.50, 1,232,964.75 and 231,000.50 is: 346,500.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,976.50 : 1,232,964.75 = 231,000.50 : x
  2. Step 2: Convert to fraction form
    821,976.50/1,232,964.75 = 231,000.50/x
  3. Step 3: Cross multiply
    821,976.50x = 1,232,964.75 × 231,000.50
  4. Step 4: Simplify right side
    821,976.50x = 284,815,473,732.38
  5. Step 5: Solve for x
    x = 284,815,473,732.38/821,976.50
  6. Step 6: Final answer
    x = 346,500.75

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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.