Home / 1,223.55-1,835.30-401.49

Finding the Fourth Proportional to 1,223.55, 1,835.30 and 401.49

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Solution

The fourth proportional to 1,223.55, 1,835.30 and 401.49 is: 602.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223.55 : 1,835.30 = 401.49 : x
  2. Step 2: Convert to fraction form
    1,223.55/1,835.30 = 401.49/x
  3. Step 3: Cross multiply
    1,223.55x = 1,835.30 × 401.49
  4. Step 4: Simplify right side
    1,223.55x = 736,855.60
  5. Step 5: Solve for x
    x = 736,855.60/1,223.55
  6. Step 6: Final answer
    x = 602.23

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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.