Home / 447,211.20-669,067.20-289,747.20

Finding the Fourth Proportional to 447,211.20, 669,067.20 and 289,747.20

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Solution

The fourth proportional to 447,211.20, 669,067.20 and 289,747.20 is: 433,487.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,211.20 : 669,067.20 = 289,747.20 : x
  2. Step 2: Convert to fraction form
    447,211.20/669,067.20 = 289,747.20/x
  3. Step 3: Cross multiply
    447,211.20x = 669,067.20 × 289,747.20
  4. Step 4: Simplify right side
    447,211.20x = 193,860,347,811.84
  5. Step 5: Solve for x
    x = 193,860,347,811.84/447,211.20
  6. Step 6: Final answer
    x = 433,487.24

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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.