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Finding the Fourth Proportional to 827.46, 1,141.70 and 533.12

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Solution

The fourth proportional to 827.46, 1,141.70 and 533.12 is: 735.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    827.46 : 1,141.70 = 533.12 : x
  2. Step 2: Convert to fraction form
    827.46/1,141.70 = 533.12/x
  3. Step 3: Cross multiply
    827.46x = 1,141.70 × 533.12
  4. Step 4: Simplify right side
    827.46x = 608,654.73
  5. Step 5: Solve for x
    x = 608,654.73/827.46
  6. Step 6: Final answer
    x = 735.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.