Home / 1,072,205.80-1,606,926.30-821,645.80

Finding the Fourth Proportional to 1,072,205.80, 1,606,926.30 and 821,645.80

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Solution

The fourth proportional to 1,072,205.80, 1,606,926.30 and 821,645.80 is: 1,231,409.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,205.80 : 1,606,926.30 = 821,645.80 : x
  2. Step 2: Convert to fraction form
    1,072,205.80/1,606,926.30 = 821,645.80/x
  3. Step 3: Cross multiply
    1,072,205.80x = 1,606,926.30 × 821,645.80
  4. Step 4: Simplify right side
    1,072,205.80x = 1,320,324,245,304.54
  5. Step 5: Solve for x
    x = 1,320,324,245,304.54/1,072,205.80
  6. Step 6: Final answer
    x = 1,231,409.35

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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.