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Finding the Third Proportional to 620,748 and 991,794

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Solution

The third proportional to 620,748 and 991,794 is: 1,584,629.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,748 : 991,794 = 991,794 : x
  2. Step 2: Convert to fraction form
    620,748/991,794 = 991,794/x
  3. Step 3: Cross multiply
    620,748x = 991,794 × 991,794
  4. Step 4: Simplify right side
    620,748x = 983,655,338,436
  5. Step 5: Solve for x
    x = 983,655,338,436/620,748
  6. Step 6: Final answer
    x = 1,584,629.09

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.