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Finding the Third Proportional to 453,465 and 989,819

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Solution

The third proportional to 453,465 and 989,819 is: 2,160,567.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,465 : 989,819 = 989,819 : x
  2. Step 2: Convert to fraction form
    453,465/989,819 = 989,819/x
  3. Step 3: Cross multiply
    453,465x = 989,819 × 989,819
  4. Step 4: Simplify right side
    453,465x = 979,741,652,761
  5. Step 5: Solve for x
    x = 979,741,652,761/453,465
  6. Step 6: Final answer
    x = 2,160,567.30

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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.