Home / 1,324.55-1,986.32-630.02

Finding the Fourth Proportional to 1,324.55, 1,986.32 and 630.02

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Solution

The fourth proportional to 1,324.55, 1,986.32 and 630.02 is: 944.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.55 : 1,986.32 = 630.02 : x
  2. Step 2: Convert to fraction form
    1,324.55/1,986.32 = 630.02/x
  3. Step 3: Cross multiply
    1,324.55x = 1,986.32 × 630.02
  4. Step 4: Simplify right side
    1,324.55x = 1,251,427.87
  5. Step 5: Solve for x
    x = 1,251,427.87/1,324.55
  6. Step 6: Final answer
    x = 944.79

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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.