Home / 1,547,872.72-2,135,947.26-868,678

Finding the Fourth Proportional to 1,547,872.72, 2,135,947.26 and 868,678

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Solution

The fourth proportional to 1,547,872.72, 2,135,947.26 and 868,678 is: 1,198,709.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547,872.72 : 2,135,947.26 = 868,678 : x
  2. Step 2: Convert to fraction form
    1,547,872.72/2,135,947.26 = 868,678/x
  3. Step 3: Cross multiply
    1,547,872.72x = 2,135,947.26 × 868,678
  4. Step 4: Simplify right side
    1,547,872.72x = 1,855,450,393,922.28
  5. Step 5: Solve for x
    x = 1,855,450,393,922.28/1,547,872.72
  6. Step 6: Final answer
    x = 1,198,709.93

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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.