Home / 1,079.55-1,619.10-299.35

Finding the Fourth Proportional to 1,079.55, 1,619.10 and 299.35

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Solution

The fourth proportional to 1,079.55, 1,619.10 and 299.35 is: 448.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079.55 : 1,619.10 = 299.35 : x
  2. Step 2: Convert to fraction form
    1,079.55/1,619.10 = 299.35/x
  3. Step 3: Cross multiply
    1,079.55x = 1,619.10 × 299.35
  4. Step 4: Simplify right side
    1,079.55x = 484,677.59
  5. Step 5: Solve for x
    x = 484,677.59/1,079.55
  6. Step 6: Final answer
    x = 448.96

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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.