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Finding the Third Proportional to 1,987,482 and 4,289,709

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Solution

The third proportional to 1,987,482 and 4,289,709 is: 9,258,752.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,482 : 4,289,709 = 4,289,709 : x
  2. Step 2: Convert to fraction form
    1,987,482/4,289,709 = 4,289,709/x
  3. Step 3: Cross multiply
    1,987,482x = 4,289,709 × 4,289,709
  4. Step 4: Simplify right side
    1,987,482x = 18,401,603,304,681
  5. Step 5: Solve for x
    x = 18,401,603,304,681/1,987,482
  6. Step 6: Final answer
    x = 9,258,752.18

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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.