Home / 785,103.40-1,179,404.70-753,221.80

Finding the Fourth Proportional to 785,103.40, 1,179,404.70 and 753,221.80

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Solution

The fourth proportional to 785,103.40, 1,179,404.70 and 753,221.80 is: 1,131,511.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,103.40 : 1,179,404.70 = 753,221.80 : x
  2. Step 2: Convert to fraction form
    785,103.40/1,179,404.70 = 753,221.80/x
  3. Step 3: Cross multiply
    785,103.40x = 1,179,404.70 × 753,221.80
  4. Step 4: Simplify right side
    785,103.40x = 888,353,331,062.46
  5. Step 5: Solve for x
    x = 888,353,331,062.46/785,103.40
  6. Step 6: Final answer
    x = 1,131,511.25

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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.