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Finding the Third Proportional to 615,112 and 1,331,312

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Solution

The third proportional to 615,112 and 1,331,312 is: 2,881,412.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,112 : 1,331,312 = 1,331,312 : x
  2. Step 2: Convert to fraction form
    615,112/1,331,312 = 1,331,312/x
  3. Step 3: Cross multiply
    615,112x = 1,331,312 × 1,331,312
  4. Step 4: Simplify right side
    615,112x = 1,772,391,641,344
  5. Step 5: Solve for x
    x = 1,772,391,641,344/615,112
  6. Step 6: Final answer
    x = 2,881,412.88

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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.