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Finding the Fourth Proportional to 1,049.83, 1,574.73 and 356.49

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Solution

The fourth proportional to 1,049.83, 1,574.73 and 356.49 is: 534.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.83 : 1,574.73 = 356.49 : x
  2. Step 2: Convert to fraction form
    1,049.83/1,574.73 = 356.49/x
  3. Step 3: Cross multiply
    1,049.83x = 1,574.73 × 356.49
  4. Step 4: Simplify right side
    1,049.83x = 561,375.50
  5. Step 5: Solve for x
    x = 561,375.50/1,049.83
  6. Step 6: Final answer
    x = 534.73

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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.