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Finding the Third Proportional to 690,105 and 1,508,148

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Solution

The third proportional to 690,105 and 1,508,148 is: 3,295,890.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,105 : 1,508,148 = 1,508,148 : x
  2. Step 2: Convert to fraction form
    690,105/1,508,148 = 1,508,148/x
  3. Step 3: Cross multiply
    690,105x = 1,508,148 × 1,508,148
  4. Step 4: Simplify right side
    690,105x = 2,274,510,389,904
  5. Step 5: Solve for x
    x = 2,274,510,389,904/690,105
  6. Step 6: Final answer
    x = 3,295,890.32

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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.