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Finding the Third Proportional to 1,386,621 and 2,980,197

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Solution

The third proportional to 1,386,621 and 2,980,197 is: 6,405,192.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,621 : 2,980,197 = 2,980,197 : x
  2. Step 2: Convert to fraction form
    1,386,621/2,980,197 = 2,980,197/x
  3. Step 3: Cross multiply
    1,386,621x = 2,980,197 × 2,980,197
  4. Step 4: Simplify right side
    1,386,621x = 8,881,574,158,809
  5. Step 5: Solve for x
    x = 8,881,574,158,809/1,386,621
  6. Step 6: Final answer
    x = 6,405,192.30

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.