Home / 1,362,207.82-1,879,856.39-781,456.30

Finding the Fourth Proportional to 1,362,207.82, 1,879,856.39 and 781,456.30

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Solution

The fourth proportional to 1,362,207.82, 1,879,856.39 and 781,456.30 is: 1,078,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,207.82 : 1,879,856.39 = 781,456.30 : x
  2. Step 2: Convert to fraction form
    1,362,207.82/1,879,856.39 = 781,456.30/x
  3. Step 3: Cross multiply
    1,362,207.82x = 1,879,856.39 × 781,456.30
  4. Step 4: Simplify right side
    1,362,207.82x = 1,469,025,619,060.76
  5. Step 5: Solve for x
    x = 1,469,025,619,060.76/1,362,207.82
  6. Step 6: Final answer
    x = 1,078,415.20

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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.