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Finding the Fourth Proportional to 944.43, 1,303.23 and 551.49

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Solution

The fourth proportional to 944.43, 1,303.23 and 551.49 is: 761.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.43 : 1,303.23 = 551.49 : x
  2. Step 2: Convert to fraction form
    944.43/1,303.23 = 551.49/x
  3. Step 3: Cross multiply
    944.43x = 1,303.23 × 551.49
  4. Step 4: Simplify right side
    944.43x = 718,718.31
  5. Step 5: Solve for x
    x = 718,718.31/944.43
  6. Step 6: Final answer
    x = 761.01

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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.