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Finding the Third Proportional to 788,391 and 1,729,386

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Solution

The third proportional to 788,391 and 1,729,386 is: 3,793,518.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,391 : 1,729,386 = 1,729,386 : x
  2. Step 2: Convert to fraction form
    788,391/1,729,386 = 1,729,386/x
  3. Step 3: Cross multiply
    788,391x = 1,729,386 × 1,729,386
  4. Step 4: Simplify right side
    788,391x = 2,990,775,936,996
  5. Step 5: Solve for x
    x = 2,990,775,936,996/788,391
  6. Step 6: Final answer
    x = 3,793,518.62

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.