Home / 1,318.06-1,977.09-452.44

Finding the Fourth Proportional to 1,318.06, 1,977.09 and 452.44

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Solution

The fourth proportional to 1,318.06, 1,977.09 and 452.44 is: 678.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318.06 : 1,977.09 = 452.44 : x
  2. Step 2: Convert to fraction form
    1,318.06/1,977.09 = 452.44/x
  3. Step 3: Cross multiply
    1,318.06x = 1,977.09 × 452.44
  4. Step 4: Simplify right side
    1,318.06x = 894,514.60
  5. Step 5: Solve for x
    x = 894,514.60/1,318.06
  6. Step 6: Final answer
    x = 678.66

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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.