Home / 1,029.09-1,543.78-298.57

Finding the Fourth Proportional to 1,029.09, 1,543.78 and 298.57

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Solution

The fourth proportional to 1,029.09, 1,543.78 and 298.57 is: 447.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029.09 : 1,543.78 = 298.57 : x
  2. Step 2: Convert to fraction form
    1,029.09/1,543.78 = 298.57/x
  3. Step 3: Cross multiply
    1,029.09x = 1,543.78 × 298.57
  4. Step 4: Simplify right side
    1,029.09x = 460,926.39
  5. Step 5: Solve for x
    x = 460,926.39/1,029.09
  6. Step 6: Final answer
    x = 447.90

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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.