Home / 1,223.87-1,835.89-493.45

Finding the Fourth Proportional to 1,223.87, 1,835.89 and 493.45

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Solution

The fourth proportional to 1,223.87, 1,835.89 and 493.45 is: 740.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223.87 : 1,835.89 = 493.45 : x
  2. Step 2: Convert to fraction form
    1,223.87/1,835.89 = 493.45/x
  3. Step 3: Cross multiply
    1,223.87x = 1,835.89 × 493.45
  4. Step 4: Simplify right side
    1,223.87x = 905,919.92
  5. Step 5: Solve for x
    x = 905,919.92/1,223.87
  6. Step 6: Final answer
    x = 740.21

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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.