Home / 664,848.80-997,247.60-221,616.80

Finding the Fourth Proportional to 664,848.80, 997,247.60 and 221,616.80

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Solution

The fourth proportional to 664,848.80, 997,247.60 and 221,616.80 is: 332,416.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,848.80 : 997,247.60 = 221,616.80 : x
  2. Step 2: Convert to fraction form
    664,848.80/997,247.60 = 221,616.80/x
  3. Step 3: Cross multiply
    664,848.80x = 997,247.60 × 221,616.80
  4. Step 4: Simplify right side
    664,848.80x = 221,006,821,919.68
  5. Step 5: Solve for x
    x = 221,006,821,919.68/664,848.80
  6. Step 6: Final answer
    x = 332,416.67

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1.5x scale

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.