Home / 1,223.45-1,834.89-483.04

Finding the Fourth Proportional to 1,223.45, 1,834.89 and 483.04

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Solution

The fourth proportional to 1,223.45, 1,834.89 and 483.04 is: 724.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223.45 : 1,834.89 = 483.04 : x
  2. Step 2: Convert to fraction form
    1,223.45/1,834.89 = 483.04/x
  3. Step 3: Cross multiply
    1,223.45x = 1,834.89 × 483.04
  4. Step 4: Simplify right side
    1,223.45x = 886,325.27
  5. Step 5: Solve for x
    x = 886,325.27/1,223.45
  6. Step 6: Final answer
    x = 724.45

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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.