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Finding the Fourth Proportional to 749.97, 1,031.49 and 602.37

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Solution

The fourth proportional to 749.97, 1,031.49 and 602.37 is: 828.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    749.97 : 1,031.49 = 602.37 : x
  2. Step 2: Convert to fraction form
    749.97/1,031.49 = 602.37/x
  3. Step 3: Cross multiply
    749.97x = 1,031.49 × 602.37
  4. Step 4: Simplify right side
    749.97x = 621,338.63
  5. Step 5: Solve for x
    x = 621,338.63/749.97
  6. Step 6: Final answer
    x = 828.48

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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.