Home / 447,307.80-670,731.86-131,723.70

Finding the Fourth Proportional to 447,307.80, 670,731.86 and 131,723.70

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Solution

The fourth proportional to 447,307.80, 670,731.86 and 131,723.70 is: 197,517.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,307.80 : 670,731.86 = 131,723.70 : x
  2. Step 2: Convert to fraction form
    447,307.80/670,731.86 = 131,723.70/x
  3. Step 3: Cross multiply
    447,307.80x = 670,731.86 × 131,723.70
  4. Step 4: Simplify right side
    447,307.80x = 88,351,282,307.08
  5. Step 5: Solve for x
    x = 88,351,282,307.08/447,307.80
  6. Step 6: Final answer
    x = 197,517.87

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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.