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Finding the Fourth Proportional to 827.41, 1,141.75 and 454.36

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Solution

The fourth proportional to 827.41, 1,141.75 and 454.36 is: 626.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    827.41 : 1,141.75 = 454.36 : x
  2. Step 2: Convert to fraction form
    827.41/1,141.75 = 454.36/x
  3. Step 3: Cross multiply
    827.41x = 1,141.75 × 454.36
  4. Step 4: Simplify right side
    827.41x = 518,765.53
  5. Step 5: Solve for x
    x = 518,765.53/827.41
  6. Step 6: Final answer
    x = 626.98

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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.