Home / 1,928,764.86-2,660,427.63-1,239,351.18

Finding the Fourth Proportional to 1,928,764.86, 2,660,427.63 and 1,239,351.18

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Solution

The fourth proportional to 1,928,764.86, 2,660,427.63 and 1,239,351.18 is: 1,709,489.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928,764.86 : 2,660,427.63 = 1,239,351.18 : x
  2. Step 2: Convert to fraction form
    1,928,764.86/2,660,427.63 = 1,239,351.18/x
  3. Step 3: Cross multiply
    1,928,764.86x = 2,660,427.63 × 1,239,351.18
  4. Step 4: Simplify right side
    1,928,764.86x = 3,297,204,122,545.10
  5. Step 5: Solve for x
    x = 3,297,204,122,545.10/1,928,764.86
  6. Step 6: Final answer
    x = 1,709,489.94

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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.