Home / 1,275,603.40-1,910,780.70-876,694.60

Finding the Fourth Proportional to 1,275,603.40, 1,910,780.70 and 876,694.60

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Solution

The fourth proportional to 1,275,603.40, 1,910,780.70 and 876,694.60 is: 1,313,238.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,603.40 : 1,910,780.70 = 876,694.60 : x
  2. Step 2: Convert to fraction form
    1,275,603.40/1,910,780.70 = 876,694.60/x
  3. Step 3: Cross multiply
    1,275,603.40x = 1,910,780.70 × 876,694.60
  4. Step 4: Simplify right side
    1,275,603.40x = 1,675,171,121,474.22
  5. Step 5: Solve for x
    x = 1,675,171,121,474.22/1,275,603.40
  6. Step 6: Final answer
    x = 1,313,238.21

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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.