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Finding the Third Proportional to 983,313 and 2,139,671

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Solution

The third proportional to 983,313 and 2,139,671 is: 4,655,884.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,313 : 2,139,671 = 2,139,671 : x
  2. Step 2: Convert to fraction form
    983,313/2,139,671 = 2,139,671/x
  3. Step 3: Cross multiply
    983,313x = 2,139,671 × 2,139,671
  4. Step 4: Simplify right side
    983,313x = 4,578,191,988,241
  5. Step 5: Solve for x
    x = 4,578,191,988,241/983,313
  6. Step 6: Final answer
    x = 4,655,884.74

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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.