Home / 1,440.40-2,160.60-466.42

Finding the Fourth Proportional to 1,440.40, 2,160.60 and 466.42

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Solution

The fourth proportional to 1,440.40, 2,160.60 and 466.42 is: 699.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440.40 : 2,160.60 = 466.42 : x
  2. Step 2: Convert to fraction form
    1,440.40/2,160.60 = 466.42/x
  3. Step 3: Cross multiply
    1,440.40x = 2,160.60 × 466.42
  4. Step 4: Simplify right side
    1,440.40x = 1,007,747.05
  5. Step 5: Solve for x
    x = 1,007,747.05/1,440.40
  6. Step 6: Final answer
    x = 699.63

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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.