Home / 443,022.20-611,157.72-289,992.98

Finding the Fourth Proportional to 443,022.20, 611,157.72 and 289,992.98

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Solution

The fourth proportional to 443,022.20, 611,157.72 and 289,992.98 is: 400,050.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,022.20 : 611,157.72 = 289,992.98 : x
  2. Step 2: Convert to fraction form
    443,022.20/611,157.72 = 289,992.98/x
  3. Step 3: Cross multiply
    443,022.20x = 611,157.72 × 289,992.98
  4. Step 4: Simplify right side
    443,022.20x = 177,231,448,472.81
  5. Step 5: Solve for x
    x = 177,231,448,472.81/443,022.20
  6. Step 6: Final answer
    x = 400,050.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.