Home / 1,243.55-1,865.33-463.56

Finding the Fourth Proportional to 1,243.55, 1,865.33 and 463.56

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Solution

The fourth proportional to 1,243.55, 1,865.33 and 463.56 is: 695.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243.55 : 1,865.33 = 463.56 : x
  2. Step 2: Convert to fraction form
    1,243.55/1,865.33 = 463.56/x
  3. Step 3: Cross multiply
    1,243.55x = 1,865.33 × 463.56
  4. Step 4: Simplify right side
    1,243.55x = 864,684.80
  5. Step 5: Solve for x
    x = 864,684.80/1,243.55
  6. Step 6: Final answer
    x = 695.33

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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.