Home / 1,868,993.82-2,580,331.95-1,225,536.30

Finding the Fourth Proportional to 1,868,993.82, 2,580,331.95 and 1,225,536.30

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Solution

The fourth proportional to 1,868,993.82, 2,580,331.95 and 1,225,536.30 is: 1,691,974.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,993.82 : 2,580,331.95 = 1,225,536.30 : x
  2. Step 2: Convert to fraction form
    1,868,993.82/2,580,331.95 = 1,225,536.30/x
  3. Step 3: Cross multiply
    1,868,993.82x = 2,580,331.95 × 1,225,536.30
  4. Step 4: Simplify right side
    1,868,993.82x = 3,162,290,470,774.79
  5. Step 5: Solve for x
    x = 3,162,290,470,774.79/1,868,993.82
  6. Step 6: Final answer
    x = 1,691,974.81

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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.