Home / 1,855,890-2,781,844.92-1,215,952.08

Finding the Fourth Proportional to 1,855,890, 2,781,844.92 and 1,215,952.08

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Solution

The fourth proportional to 1,855,890, 2,781,844.92 and 1,215,952.08 is: 1,822,624.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855,890 : 2,781,844.92 = 1,215,952.08 : x
  2. Step 2: Convert to fraction form
    1,855,890/2,781,844.92 = 1,215,952.08/x
  3. Step 3: Cross multiply
    1,855,890x = 2,781,844.92 × 1,215,952.08
  4. Step 4: Simplify right side
    1,855,890x = 3,382,590,116,711.43
  5. Step 5: Solve for x
    x = 3,382,590,116,711.43/1,855,890
  6. Step 6: Final answer
    x = 1,822,624.25

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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.