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Finding the Third Proportional to 988,575 and 2,157,579

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Solution

The third proportional to 988,575 and 2,157,579 is: 4,708,946.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,575 : 2,157,579 = 2,157,579 : x
  2. Step 2: Convert to fraction form
    988,575/2,157,579 = 2,157,579/x
  3. Step 3: Cross multiply
    988,575x = 2,157,579 × 2,157,579
  4. Step 4: Simplify right side
    988,575x = 4,655,147,141,241
  5. Step 5: Solve for x
    x = 4,655,147,141,241/988,575
  6. Step 6: Final answer
    x = 4,708,946.86

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.