Home / 1,547,135-2,135,083.08-868,121.72

Finding the Fourth Proportional to 1,547,135, 2,135,083.08 and 868,121.72

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Solution

The fourth proportional to 1,547,135, 2,135,083.08 and 868,121.72 is: 1,198,028.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547,135 : 2,135,083.08 = 868,121.72 : x
  2. Step 2: Convert to fraction form
    1,547,135/2,135,083.08 = 868,121.72/x
  3. Step 3: Cross multiply
    1,547,135x = 2,135,083.08 × 868,121.72
  4. Step 4: Simplify right side
    1,547,135x = 1,853,511,995,752.50
  5. Step 5: Solve for x
    x = 1,853,511,995,752.50/1,547,135
  6. Step 6: Final answer
    x = 1,198,028.61

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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.