Home / 1,324.49-1,985.43-630.96

Finding the Fourth Proportional to 1,324.49, 1,985.43 and 630.96

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Solution

The fourth proportional to 1,324.49, 1,985.43 and 630.96 is: 945.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.49 : 1,985.43 = 630.96 : x
  2. Step 2: Convert to fraction form
    1,324.49/1,985.43 = 630.96/x
  3. Step 3: Cross multiply
    1,324.49x = 1,985.43 × 630.96
  4. Step 4: Simplify right side
    1,324.49x = 1,252,726.91
  5. Step 5: Solve for x
    x = 1,252,726.91/1,324.49
  6. Step 6: Final answer
    x = 945.82

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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.