Home / 1,321,441.66-1,982,045.82-480,000.70

Finding the Fourth Proportional to 1,321,441.66, 1,982,045.82 and 480,000.70

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Solution

The fourth proportional to 1,321,441.66, 1,982,045.82 and 480,000.70 is: 719,958.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,441.66 : 1,982,045.82 = 480,000.70 : x
  2. Step 2: Convert to fraction form
    1,321,441.66/1,982,045.82 = 480,000.70/x
  3. Step 3: Cross multiply
    1,321,441.66x = 1,982,045.82 × 480,000.70
  4. Step 4: Simplify right side
    1,321,441.66x = 951,383,381,032.07
  5. Step 5: Solve for x
    x = 951,383,381,032.07/1,321,441.66
  6. Step 6: Final answer
    x = 719,958.67

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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.