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Finding the Third Proportional to 429,421.50 and 858,795.75

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Solution

The third proportional to 429,421.50 and 858,795.75 is: 1,717,497.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,421.50 : 858,795.75 = 858,795.75 : x
  2. Step 2: Convert to fraction form
    429,421.50/858,795.75 = 858,795.75/x
  3. Step 3: Cross multiply
    429,421.50x = 858,795.75 × 858,795.75
  4. Step 4: Simplify right side
    429,421.50x = 737,530,140,218.06
  5. Step 5: Solve for x
    x = 737,530,140,218.06/429,421.50
  6. Step 6: Final answer
    x = 1,717,497.01

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Why These Related Problems?

These problems maintain the same ratio (2.00) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.