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Finding the Third Proportional to 355,861.75 and 777,387.50

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Solution

The third proportional to 355,861.75 and 777,387.50 is: 1,698,219.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,861.75 : 777,387.50 = 777,387.50 : x
  2. Step 2: Convert to fraction form
    355,861.75/777,387.50 = 777,387.50/x
  3. Step 3: Cross multiply
    355,861.75x = 777,387.50 × 777,387.50
  4. Step 4: Simplify right side
    355,861.75x = 604,331,325,156.25
  5. Step 5: Solve for x
    x = 604,331,325,156.25/355,861.75
  6. Step 6: Final answer
    x = 1,698,219.39

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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.