Home / 1,547,129-2,135,074.80-868,115.72

Finding the Fourth Proportional to 1,547,129, 2,135,074.80 and 868,115.72

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Solution

The fourth proportional to 1,547,129, 2,135,074.80 and 868,115.72 is: 1,198,020.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547,129 : 2,135,074.80 = 868,115.72 : x
  2. Step 2: Convert to fraction form
    1,547,129/2,135,074.80 = 868,115.72/x
  3. Step 3: Cross multiply
    1,547,129x = 2,135,074.80 × 868,115.72
  4. Step 4: Simplify right side
    1,547,129x = 1,853,491,997,255.86
  5. Step 5: Solve for x
    x = 1,853,491,997,255.86/1,547,129
  6. Step 6: Final answer
    x = 1,198,020.33

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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.