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Finding the Third Proportional to 615,521 and 902,019

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Solution

The third proportional to 615,521 and 902,019 is: 1,321,869.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,521 : 902,019 = 902,019 : x
  2. Step 2: Convert to fraction form
    615,521/902,019 = 902,019/x
  3. Step 3: Cross multiply
    615,521x = 902,019 × 902,019
  4. Step 4: Simplify right side
    615,521x = 813,638,276,361
  5. Step 5: Solve for x
    x = 813,638,276,361/615,521
  6. Step 6: Final answer
    x = 1,321,869.24

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.