Home / 1,079.24-1,618.65-299.07

Finding the Fourth Proportional to 1,079.24, 1,618.65 and 299.07

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Solution

The fourth proportional to 1,079.24, 1,618.65 and 299.07 is: 448.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079.24 : 1,618.65 = 299.07 : x
  2. Step 2: Convert to fraction form
    1,079.24/1,618.65 = 299.07/x
  3. Step 3: Cross multiply
    1,079.24x = 1,618.65 × 299.07
  4. Step 4: Simplify right side
    1,079.24x = 484,089.66
  5. Step 5: Solve for x
    x = 484,089.66/1,079.24
  6. Step 6: Final answer
    x = 448.55

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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.