Home / 2,378,969.19-3,282,889.50-1,291,217.36

Finding the Fourth Proportional to 2,378,969.19, 3,282,889.50 and 1,291,217.36

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Solution

The fourth proportional to 2,378,969.19, 3,282,889.50 and 1,291,217.36 is: 1,781,832.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378,969.19 : 3,282,889.50 = 1,291,217.36 : x
  2. Step 2: Convert to fraction form
    2,378,969.19/3,282,889.50 = 1,291,217.36/x
  3. Step 3: Cross multiply
    2,378,969.19x = 3,282,889.50 × 1,291,217.36
  4. Step 4: Simplify right side
    2,378,969.19x = 4,238,923,896,947.27
  5. Step 5: Solve for x
    x = 4,238,923,896,947.27/2,378,969.19
  6. Step 6: Final answer
    x = 1,781,832.20

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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.