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Finding the Fourth Proportional to 944.46, 1,302.90 and 551.25

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Solution

The fourth proportional to 944.46, 1,302.90 and 551.25 is: 760.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.46 : 1,302.90 = 551.25 : x
  2. Step 2: Convert to fraction form
    944.46/1,302.90 = 551.25/x
  3. Step 3: Cross multiply
    944.46x = 1,302.90 × 551.25
  4. Step 4: Simplify right side
    944.46x = 718,223.63
  5. Step 5: Solve for x
    x = 718,223.63/944.46
  6. Step 6: Final answer
    x = 760.46

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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.