Home / 439,738.20-659,607.30-298,020.60

Finding the Fourth Proportional to 439,738.20, 659,607.30 and 298,020.60

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Solution

The fourth proportional to 439,738.20, 659,607.30 and 298,020.60 is: 447,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,738.20 : 659,607.30 = 298,020.60 : x
  2. Step 2: Convert to fraction form
    439,738.20/659,607.30 = 298,020.60/x
  3. Step 3: Cross multiply
    439,738.20x = 659,607.30 × 298,020.60
  4. Step 4: Simplify right side
    439,738.20x = 196,576,563,310.38
  5. Step 5: Solve for x
    x = 196,576,563,310.38/439,738.20
  6. Step 6: Final answer
    x = 447,030.90

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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.