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Finding the Third Proportional to 366,984 and 788,220

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Solution

The third proportional to 366,984 and 788,220 is: 1,692,964.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,984 : 788,220 = 788,220 : x
  2. Step 2: Convert to fraction form
    366,984/788,220 = 788,220/x
  3. Step 3: Cross multiply
    366,984x = 788,220 × 788,220
  4. Step 4: Simplify right side
    366,984x = 621,290,768,400
  5. Step 5: Solve for x
    x = 621,290,768,400/366,984
  6. Step 6: Final answer
    x = 1,692,964.18

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.