Home / 1,029.15-1,543.55-298.65

Finding the Fourth Proportional to 1,029.15, 1,543.55 and 298.65

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Solution

The fourth proportional to 1,029.15, 1,543.55 and 298.65 is: 447.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029.15 : 1,543.55 = 298.65 : x
  2. Step 2: Convert to fraction form
    1,029.15/1,543.55 = 298.65/x
  3. Step 3: Cross multiply
    1,029.15x = 1,543.55 × 298.65
  4. Step 4: Simplify right side
    1,029.15x = 460,979.71
  5. Step 5: Solve for x
    x = 460,979.71/1,029.15
  6. Step 6: Final answer
    x = 447.92

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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.