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Finding the Fourth Proportional to 944.26, 1,302.78 and 551.00

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Solution

The fourth proportional to 944.26, 1,302.78 and 551.00 is: 760.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.26 : 1,302.78 = 551.00 : x
  2. Step 2: Convert to fraction form
    944.26/1,302.78 = 551.00/x
  3. Step 3: Cross multiply
    944.26x = 1,302.78 × 551.00
  4. Step 4: Simplify right side
    944.26x = 717,837.10
  5. Step 5: Solve for x
    x = 717,837.10/944.26
  6. Step 6: Final answer
    x = 760.21

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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.