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Finding the Fourth Proportional to 842.64, 1,264.46 and 601.16

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Solution

The fourth proportional to 842.64, 1,264.46 and 601.16 is: 902.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    842.64 : 1,264.46 = 601.16 : x
  2. Step 2: Convert to fraction form
    842.64/1,264.46 = 601.16/x
  3. Step 3: Cross multiply
    842.64x = 1,264.46 × 601.16
  4. Step 4: Simplify right side
    842.64x = 760,142.77
  5. Step 5: Solve for x
    x = 760,142.77/842.64
  6. Step 6: Final answer
    x = 902.10

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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.