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Finding the Third Proportional to 615,386 and 1,329,187

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Solution

The third proportional to 615,386 and 1,329,187 is: 2,870,942.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,386 : 1,329,187 = 1,329,187 : x
  2. Step 2: Convert to fraction form
    615,386/1,329,187 = 1,329,187/x
  3. Step 3: Cross multiply
    615,386x = 1,329,187 × 1,329,187
  4. Step 4: Simplify right side
    615,386x = 1,766,738,080,969
  5. Step 5: Solve for x
    x = 1,766,738,080,969/615,386
  6. Step 6: Final answer
    x = 2,870,942.92

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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.