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Finding the Third Proportional to 612,490 and 901,230

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Solution

The third proportional to 612,490 and 901,230 is: 1,326,087.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,490 : 901,230 = 901,230 : x
  2. Step 2: Convert to fraction form
    612,490/901,230 = 901,230/x
  3. Step 3: Cross multiply
    612,490x = 901,230 × 901,230
  4. Step 4: Simplify right side
    612,490x = 812,215,512,900
  5. Step 5: Solve for x
    x = 812,215,512,900/612,490
  6. Step 6: Final answer
    x = 1,326,087.79

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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.