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Finding the Fourth Proportional to 829.49, 1,243.82 and 464.18

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Solution

The fourth proportional to 829.49, 1,243.82 and 464.18 is: 696.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    829.49 : 1,243.82 = 464.18 : x
  2. Step 2: Convert to fraction form
    829.49/1,243.82 = 464.18/x
  3. Step 3: Cross multiply
    829.49x = 1,243.82 × 464.18
  4. Step 4: Simplify right side
    829.49x = 577,354.05
  5. Step 5: Solve for x
    x = 577,354.05/829.49
  6. Step 6: Final answer
    x = 696.03

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Double scale
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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.