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Finding the Third Proportional to 555,552 and 786,618

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Solution

The third proportional to 555,552 and 786,618 is: 1,113,789.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,552 : 786,618 = 786,618 : x
  2. Step 2: Convert to fraction form
    555,552/786,618 = 786,618/x
  3. Step 3: Cross multiply
    555,552x = 786,618 × 786,618
  4. Step 4: Simplify right side
    555,552x = 618,767,877,924
  5. Step 5: Solve for x
    x = 618,767,877,924/555,552
  6. Step 6: Final answer
    x = 1,113,789.31

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.