Home / 1,040.04-1,559.33-423.56

Finding the Fourth Proportional to 1,040.04, 1,559.33 and 423.56

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Solution

The fourth proportional to 1,040.04, 1,559.33 and 423.56 is: 635.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040.04 : 1,559.33 = 423.56 : x
  2. Step 2: Convert to fraction form
    1,040.04/1,559.33 = 423.56/x
  3. Step 3: Cross multiply
    1,040.04x = 1,559.33 × 423.56
  4. Step 4: Simplify right side
    1,040.04x = 660,469.81
  5. Step 5: Solve for x
    x = 660,469.81/1,040.04
  6. Step 6: Final answer
    x = 635.04

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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.