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Finding the Third Proportional to 687,607.31 and 1,503,000.56

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Solution

The third proportional to 687,607.31 and 1,503,000.56 is: 3,285,320.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,607.31 : 1,503,000.56 = 1,503,000.56 : x
  2. Step 2: Convert to fraction form
    687,607.31/1,503,000.56 = 1,503,000.56/x
  3. Step 3: Cross multiply
    687,607.31x = 1,503,000.56 × 1,503,000.56
  4. Step 4: Simplify right side
    687,607.31x = 2,259,010,690,875.32
  5. Step 5: Solve for x
    x = 2,259,010,690,875.32/687,607.31
  6. Step 6: Final answer
    x = 3,285,320.92

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.