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Finding the Third Proportional to 402,319.50 and 869,977.50

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Solution

The third proportional to 402,319.50 and 869,977.50 is: 1,881,243.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,319.50 : 869,977.50 = 869,977.50 : x
  2. Step 2: Convert to fraction form
    402,319.50/869,977.50 = 869,977.50/x
  3. Step 3: Cross multiply
    402,319.50x = 869,977.50 × 869,977.50
  4. Step 4: Simplify right side
    402,319.50x = 756,860,850,506.25
  5. Step 5: Solve for x
    x = 756,860,850,506.25/402,319.50
  6. Step 6: Final answer
    x = 1,881,243.27

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.