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Finding the Third Proportional to 403,329 and 877,779

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Solution

The third proportional to 403,329 and 877,779 is: 1,910,341.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,329 : 877,779 = 877,779 : x
  2. Step 2: Convert to fraction form
    403,329/877,779 = 877,779/x
  3. Step 3: Cross multiply
    403,329x = 877,779 × 877,779
  4. Step 4: Simplify right side
    403,329x = 770,495,972,841
  5. Step 5: Solve for x
    x = 770,495,972,841/403,329
  6. Step 6: Final answer
    x = 1,910,341.12

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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.