Home / 1,223.18-1,834.99-401.50

Finding the Fourth Proportional to 1,223.18, 1,834.99 and 401.50

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Solution

The fourth proportional to 1,223.18, 1,834.99 and 401.50 is: 602.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223.18 : 1,834.99 = 401.50 : x
  2. Step 2: Convert to fraction form
    1,223.18/1,834.99 = 401.50/x
  3. Step 3: Cross multiply
    1,223.18x = 1,834.99 × 401.50
  4. Step 4: Simplify right side
    1,223.18x = 736,748.49
  5. Step 5: Solve for x
    x = 736,748.49/1,223.18
  6. Step 6: Final answer
    x = 602.32

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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.