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Finding the Third Proportional to 1,018,764 and 1,378,678.50

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Solution

The third proportional to 1,018,764 and 1,378,678.50 is: 1,865,745.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,764 : 1,378,678.50 = 1,378,678.50 : x
  2. Step 2: Convert to fraction form
    1,018,764/1,378,678.50 = 1,378,678.50/x
  3. Step 3: Cross multiply
    1,018,764x = 1,378,678.50 × 1,378,678.50
  4. Step 4: Simplify right side
    1,018,764x = 1,900,754,406,362.25
  5. Step 5: Solve for x
    x = 1,900,754,406,362.25/1,018,764
  6. Step 6: Final answer
    x = 1,865,745.56

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.