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Finding the Third Proportional to 657,897.50 and 991,704

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Solution

The third proportional to 657,897.50 and 991,704 is: 1,494,878.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,897.50 : 991,704 = 991,704 : x
  2. Step 2: Convert to fraction form
    657,897.50/991,704 = 991,704/x
  3. Step 3: Cross multiply
    657,897.50x = 991,704 × 991,704
  4. Step 4: Simplify right side
    657,897.50x = 983,476,823,616
  5. Step 5: Solve for x
    x = 983,476,823,616/657,897.50
  6. Step 6: Final answer
    x = 1,494,878.49

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.