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Finding the Third Proportional to 978,824 and 2,167,276

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Solution

The third proportional to 978,824 and 2,167,276 is: 4,798,702.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,824 : 2,167,276 = 2,167,276 : x
  2. Step 2: Convert to fraction form
    978,824/2,167,276 = 2,167,276/x
  3. Step 3: Cross multiply
    978,824x = 2,167,276 × 2,167,276
  4. Step 4: Simplify right side
    978,824x = 4,697,085,260,176
  5. Step 5: Solve for x
    x = 4,697,085,260,176/978,824
  6. Step 6: Final answer
    x = 4,798,702.59

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These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.