Home / 1,097,910.80-1,643,658.60-782,982.80

Finding the Fourth Proportional to 1,097,910.80, 1,643,658.60 and 782,982.80

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Solution

The fourth proportional to 1,097,910.80, 1,643,658.60 and 782,982.80 is: 1,172,186.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,910.80 : 1,643,658.60 = 782,982.80 : x
  2. Step 2: Convert to fraction form
    1,097,910.80/1,643,658.60 = 782,982.80/x
  3. Step 3: Cross multiply
    1,097,910.80x = 1,643,658.60 × 782,982.80
  4. Step 4: Simplify right side
    1,097,910.80x = 1,286,956,412,872.08
  5. Step 5: Solve for x
    x = 1,286,956,412,872.08/1,097,910.80
  6. Step 6: Final answer
    x = 1,172,186.68

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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.