Home / 1,529.40-2,294.27-433.78

Finding the Fourth Proportional to 1,529.40, 2,294.27 and 433.78

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Solution

The fourth proportional to 1,529.40, 2,294.27 and 433.78 is: 650.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.40 : 2,294.27 = 433.78 : x
  2. Step 2: Convert to fraction form
    1,529.40/2,294.27 = 433.78/x
  3. Step 3: Cross multiply
    1,529.40x = 2,294.27 × 433.78
  4. Step 4: Simplify right side
    1,529.40x = 995,208.44
  5. Step 5: Solve for x
    x = 995,208.44/1,529.40
  6. Step 6: Final answer
    x = 650.72

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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.