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Finding the Fourth Proportional to 1,049.61, 1,573.06 and 433.74

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Solution

The fourth proportional to 1,049.61, 1,573.06 and 433.74 is: 650.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.61 : 1,573.06 = 433.74 : x
  2. Step 2: Convert to fraction form
    1,049.61/1,573.06 = 433.74/x
  3. Step 3: Cross multiply
    1,049.61x = 1,573.06 × 433.74
  4. Step 4: Simplify right side
    1,049.61x = 682,299.04
  5. Step 5: Solve for x
    x = 682,299.04/1,049.61
  6. Step 6: Final answer
    x = 650.05

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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.