Home / 1,231,249.80-1,846,874.70-521,790.60

Finding the Fourth Proportional to 1,231,249.80, 1,846,874.70 and 521,790.60

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Solution

The fourth proportional to 1,231,249.80, 1,846,874.70 and 521,790.60 is: 782,685.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,249.80 : 1,846,874.70 = 521,790.60 : x
  2. Step 2: Convert to fraction form
    1,231,249.80/1,846,874.70 = 521,790.60/x
  3. Step 3: Cross multiply
    1,231,249.80x = 1,846,874.70 × 521,790.60
  4. Step 4: Simplify right side
    1,231,249.80x = 963,681,857,837.82
  5. Step 5: Solve for x
    x = 963,681,857,837.82/1,231,249.80
  6. Step 6: Final answer
    x = 782,685.90

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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.