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Finding the Third Proportional to 698,517 and 1,488,618

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Solution

The third proportional to 698,517 and 1,488,618 is: 3,172,411.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,517 : 1,488,618 = 1,488,618 : x
  2. Step 2: Convert to fraction form
    698,517/1,488,618 = 1,488,618/x
  3. Step 3: Cross multiply
    698,517x = 1,488,618 × 1,488,618
  4. Step 4: Simplify right side
    698,517x = 2,215,983,549,924
  5. Step 5: Solve for x
    x = 2,215,983,549,924/698,517
  6. Step 6: Final answer
    x = 3,172,411.77

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.