Home / 447,457.12-670,984.72-131,803.36

Finding the Fourth Proportional to 447,457.12, 670,984.72 and 131,803.36

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Solution

The fourth proportional to 447,457.12, 670,984.72 and 131,803.36 is: 197,645.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,457.12 : 670,984.72 = 131,803.36 : x
  2. Step 2: Convert to fraction form
    447,457.12/670,984.72 = 131,803.36/x
  3. Step 3: Cross multiply
    447,457.12x = 670,984.72 × 131,803.36
  4. Step 4: Simplify right side
    447,457.12x = 88,438,040,604.66
  5. Step 5: Solve for x
    x = 88,438,040,604.66/447,457.12
  6. Step 6: Final answer
    x = 197,645.85

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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.