Home / 1,550,691.81-2,139,640.92-905,987.43

Finding the Fourth Proportional to 1,550,691.81, 2,139,640.92 and 905,987.43

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Solution

The fourth proportional to 1,550,691.81, 2,139,640.92 and 905,987.43 is: 1,250,079.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550,691.81 : 2,139,640.92 = 905,987.43 : x
  2. Step 2: Convert to fraction form
    1,550,691.81/2,139,640.92 = 905,987.43/x
  3. Step 3: Cross multiply
    1,550,691.81x = 2,139,640.92 × 905,987.43
  4. Step 4: Simplify right side
    1,550,691.81x = 1,938,487,778,233.64
  5. Step 5: Solve for x
    x = 1,938,487,778,233.64/1,550,691.81
  6. Step 6: Final answer
    x = 1,250,079.33

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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.