Home / 1,223.08-1,834.76-401.45

Finding the Fourth Proportional to 1,223.08, 1,834.76 and 401.45

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Solution

The fourth proportional to 1,223.08, 1,834.76 and 401.45 is: 602.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223.08 : 1,834.76 = 401.45 : x
  2. Step 2: Convert to fraction form
    1,223.08/1,834.76 = 401.45/x
  3. Step 3: Cross multiply
    1,223.08x = 1,834.76 × 401.45
  4. Step 4: Simplify right side
    1,223.08x = 736,556.23
  5. Step 5: Solve for x
    x = 736,556.23/1,223.08
  6. Step 6: Final answer
    x = 602.22

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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.