Home / 1,029.13-1,543.70-298.75

Finding the Fourth Proportional to 1,029.13, 1,543.70 and 298.75

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Solution

The fourth proportional to 1,029.13, 1,543.70 and 298.75 is: 448.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029.13 : 1,543.70 = 298.75 : x
  2. Step 2: Convert to fraction form
    1,029.13/1,543.70 = 298.75/x
  3. Step 3: Cross multiply
    1,029.13x = 1,543.70 × 298.75
  4. Step 4: Simplify right side
    1,029.13x = 461,180.38
  5. Step 5: Solve for x
    x = 461,180.38/1,029.13
  6. Step 6: Final answer
    x = 448.13

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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.