Home / 1,547,120.85-2,135,063.59-868,107.57

Finding the Fourth Proportional to 1,547,120.85, 2,135,063.59 and 868,107.57

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Solution

The fourth proportional to 1,547,120.85, 2,135,063.59 and 868,107.57 is: 1,198,009.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547,120.85 : 2,135,063.59 = 868,107.57 : x
  2. Step 2: Convert to fraction form
    1,547,120.85/2,135,063.59 = 868,107.57/x
  3. Step 3: Cross multiply
    1,547,120.85x = 2,135,063.59 × 868,107.57
  4. Step 4: Simplify right side
    1,547,120.85x = 1,853,464,864,910.38
  5. Step 5: Solve for x
    x = 1,853,464,864,910.38/1,547,120.85
  6. Step 6: Final answer
    x = 1,198,009.11

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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.