Home / 1,198,138.80-1,796,552.10-487,363.80

Finding the Fourth Proportional to 1,198,138.80, 1,796,552.10 and 487,363.80

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Solution

The fourth proportional to 1,198,138.80, 1,796,552.10 and 487,363.80 is: 730,778.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,138.80 : 1,796,552.10 = 487,363.80 : x
  2. Step 2: Convert to fraction form
    1,198,138.80/1,796,552.10 = 487,363.80/x
  3. Step 3: Cross multiply
    1,198,138.80x = 1,796,552.10 × 487,363.80
  4. Step 4: Simplify right side
    1,198,138.80x = 875,574,458,353.98
  5. Step 5: Solve for x
    x = 875,574,458,353.98/1,198,138.80
  6. Step 6: Final answer
    x = 730,778.82

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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.