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Finding the Fourth Proportional to 944.43, 1,302.78 and 551.37

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Solution

The fourth proportional to 944.43, 1,302.78 and 551.37 is: 760.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.43 : 1,302.78 = 551.37 : x
  2. Step 2: Convert to fraction form
    944.43/1,302.78 = 551.37/x
  3. Step 3: Cross multiply
    944.43x = 1,302.78 × 551.37
  4. Step 4: Simplify right side
    944.43x = 718,313.81
  5. Step 5: Solve for x
    x = 718,313.81/944.43
  6. Step 6: Final answer
    x = 760.58

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Double scale
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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.