Home / 1,233.90-1,849.49-618.12

Finding the Fourth Proportional to 1,233.90, 1,849.49 and 618.12

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Solution

The fourth proportional to 1,233.90, 1,849.49 and 618.12 is: 926.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233.90 : 1,849.49 = 618.12 : x
  2. Step 2: Convert to fraction form
    1,233.90/1,849.49 = 618.12/x
  3. Step 3: Cross multiply
    1,233.90x = 1,849.49 × 618.12
  4. Step 4: Simplify right side
    1,233.90x = 1,143,203.67
  5. Step 5: Solve for x
    x = 1,143,203.67/1,233.90
  6. Step 6: Final answer
    x = 926.50

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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.