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Finding the Fourth Proportional to 1,386,678, 2,080,017 and 336,054

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Solution

The fourth proportional to 1,386,678, 2,080,017 and 336,054 is: 504,081

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,678 : 2,080,017 = 336,054 : x
  2. Step 2: Convert to fraction form
    1,386,678/2,080,017 = 336,054/x
  3. Step 3: Cross multiply
    1,386,678x = 2,080,017 × 336,054
  4. Step 4: Simplify right side
    1,386,678x = 698,998,032,918
  5. Step 5: Solve for x
    x = 698,998,032,918/1,386,678
  6. Step 6: Final answer
    x = 504,081

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.