Home / 1,550,694.81-2,139,645.06-905,990.43

Finding the Fourth Proportional to 1,550,694.81, 2,139,645.06 and 905,990.43

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Solution

The fourth proportional to 1,550,694.81, 2,139,645.06 and 905,990.43 is: 1,250,083.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550,694.81 : 2,139,645.06 = 905,990.43 : x
  2. Step 2: Convert to fraction form
    1,550,694.81/2,139,645.06 = 905,990.43/x
  3. Step 3: Cross multiply
    1,550,694.81x = 2,139,645.06 × 905,990.43
  4. Step 4: Simplify right side
    1,550,694.81x = 1,938,497,947,956.78
  5. Step 5: Solve for x
    x = 1,938,497,947,956.78/1,550,694.81
  6. Step 6: Final answer
    x = 1,250,083.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.