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Finding the Third Proportional to 430,851 and 657,939

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Solution

The third proportional to 430,851 and 657,939 is: 1,004,717.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,851 : 657,939 = 657,939 : x
  2. Step 2: Convert to fraction form
    430,851/657,939 = 657,939/x
  3. Step 3: Cross multiply
    430,851x = 657,939 × 657,939
  4. Step 4: Simplify right side
    430,851x = 432,883,727,721
  5. Step 5: Solve for x
    x = 432,883,727,721/430,851
  6. Step 6: Final answer
    x = 1,004,717.94

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.