Home / 1,315,270.80-1,972,906.20-317,998.80

Finding the Fourth Proportional to 1,315,270.80, 1,972,906.20 and 317,998.80

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Solution

The fourth proportional to 1,315,270.80, 1,972,906.20 and 317,998.80 is: 476,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,270.80 : 1,972,906.20 = 317,998.80 : x
  2. Step 2: Convert to fraction form
    1,315,270.80/1,972,906.20 = 317,998.80/x
  3. Step 3: Cross multiply
    1,315,270.80x = 1,972,906.20 × 317,998.80
  4. Step 4: Simplify right side
    1,315,270.80x = 627,381,804,112.56
  5. Step 5: Solve for x
    x = 627,381,804,112.56/1,315,270.80
  6. Step 6: Final answer
    x = 476,998.20

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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.