Home / 480,711.20-720,872.40-165,005.60

Finding the Fourth Proportional to 480,711.20, 720,872.40 and 165,005.60

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Solution

The fourth proportional to 480,711.20, 720,872.40 and 165,005.60 is: 247,441.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,711.20 : 720,872.40 = 165,005.60 : x
  2. Step 2: Convert to fraction form
    480,711.20/720,872.40 = 165,005.60/x
  3. Step 3: Cross multiply
    480,711.20x = 720,872.40 × 165,005.60
  4. Step 4: Simplify right side
    480,711.20x = 118,947,982,885.44
  5. Step 5: Solve for x
    x = 118,947,982,885.44/480,711.20
  6. Step 6: Final answer
    x = 247,441.67

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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.