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Finding the Fourth Proportional to 902.76, 1,352.09 and 440.91

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Solution

The fourth proportional to 902.76, 1,352.09 and 440.91 is: 660.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    902.76 : 1,352.09 = 440.91 : x
  2. Step 2: Convert to fraction form
    902.76/1,352.09 = 440.91/x
  3. Step 3: Cross multiply
    902.76x = 1,352.09 × 440.91
  4. Step 4: Simplify right side
    902.76x = 596,151.10
  5. Step 5: Solve for x
    x = 596,151.10/902.76
  6. Step 6: Final answer
    x = 660.36

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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.