Home / 980,003.80-1,469,660.10-447,779.80

Finding the Fourth Proportional to 980,003.80, 1,469,660.10 and 447,779.80

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Solution

The fourth proportional to 980,003.80, 1,469,660.10 and 447,779.80 is: 671,511.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,003.80 : 1,469,660.10 = 447,779.80 : x
  2. Step 2: Convert to fraction form
    980,003.80/1,469,660.10 = 447,779.80/x
  3. Step 3: Cross multiply
    980,003.80x = 1,469,660.10 × 447,779.80
  4. Step 4: Simplify right side
    980,003.80x = 658,084,105,645.98
  5. Step 5: Solve for x
    x = 658,084,105,645.98/980,003.80
  6. Step 6: Final answer
    x = 671,511.79

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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.