Home / 1,165,286.57-1,608,138.89-642,018.44

Finding the Fourth Proportional to 1,165,286.57, 1,608,138.89 and 642,018.44

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Solution

The fourth proportional to 1,165,286.57, 1,608,138.89 and 642,018.44 is: 886,009.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,286.57 : 1,608,138.89 = 642,018.44 : x
  2. Step 2: Convert to fraction form
    1,165,286.57/1,608,138.89 = 642,018.44/x
  3. Step 3: Cross multiply
    1,165,286.57x = 1,608,138.89 × 642,018.44
  4. Step 4: Simplify right side
    1,165,286.57x = 1,032,454,810,210.35
  5. Step 5: Solve for x
    x = 1,032,454,810,210.35/1,165,286.57
  6. Step 6: Final answer
    x = 886,009.37

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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.