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Finding the Third Proportional to 305,875 and 658,618

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Solution

The third proportional to 305,875 and 658,618 is: 1,418,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,875 : 658,618 = 658,618 : x
  2. Step 2: Convert to fraction form
    305,875/658,618 = 658,618/x
  3. Step 3: Cross multiply
    305,875x = 658,618 × 658,618
  4. Step 4: Simplify right side
    305,875x = 433,777,669,924
  5. Step 5: Solve for x
    x = 433,777,669,924/305,875
  6. Step 6: Final answer
    x = 1,418,153.40

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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.