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Finding the Third Proportional to 985,206 and 2,155,578

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Solution

The third proportional to 985,206 and 2,155,578 is: 4,716,289.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,206 : 2,155,578 = 2,155,578 : x
  2. Step 2: Convert to fraction form
    985,206/2,155,578 = 2,155,578/x
  3. Step 3: Cross multiply
    985,206x = 2,155,578 × 2,155,578
  4. Step 4: Simplify right side
    985,206x = 4,646,516,514,084
  5. Step 5: Solve for x
    x = 4,646,516,514,084/985,206
  6. Step 6: Final answer
    x = 4,716,289.30

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.