Home / 2,138,689.23-3,208,033.85-718,745.28

Finding the Fourth Proportional to 2,138,689.23, 3,208,033.85 and 718,745.28

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Solution

The fourth proportional to 2,138,689.23, 3,208,033.85 and 718,745.28 is: 1,078,117.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,689.23 : 3,208,033.85 = 718,745.28 : x
  2. Step 2: Convert to fraction form
    2,138,689.23/3,208,033.85 = 718,745.28/x
  3. Step 3: Cross multiply
    2,138,689.23x = 3,208,033.85 × 718,745.28
  4. Step 4: Simplify right side
    2,138,689.23x = 2,305,759,184,174.00
  5. Step 5: Solve for x
    x = 2,305,759,184,174.00/2,138,689.23
  6. Step 6: Final answer
    x = 1,078,117.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.