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Finding the Fourth Proportional to 696.01, 1,043.27 and 348.79

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Solution

The fourth proportional to 696.01, 1,043.27 and 348.79 is: 522.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    696.01 : 1,043.27 = 348.79 : x
  2. Step 2: Convert to fraction form
    696.01/1,043.27 = 348.79/x
  3. Step 3: Cross multiply
    696.01x = 1,043.27 × 348.79
  4. Step 4: Simplify right side
    696.01x = 363,883.02
  5. Step 5: Solve for x
    x = 363,883.02/696.01
  6. Step 6: Final answer
    x = 522.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.