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Finding the Third Proportional to 1,489,428 and 3,215,070

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Solution

The third proportional to 1,489,428 and 3,215,070 is: 6,940,030.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,428 : 3,215,070 = 3,215,070 : x
  2. Step 2: Convert to fraction form
    1,489,428/3,215,070 = 3,215,070/x
  3. Step 3: Cross multiply
    1,489,428x = 3,215,070 × 3,215,070
  4. Step 4: Simplify right side
    1,489,428x = 10,336,675,104,900
  5. Step 5: Solve for x
    x = 10,336,675,104,900/1,489,428
  6. Step 6: Final answer
    x = 6,940,030.07

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.