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Finding the Fourth Proportional to 1,694,602, 2,338,758.12 and 979,210

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Solution

The fourth proportional to 1,694,602, 2,338,758.12 and 979,210 is: 1,351,429.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,694,602 : 2,338,758.12 = 979,210 : x
  2. Step 2: Convert to fraction form
    1,694,602/2,338,758.12 = 979,210/x
  3. Step 3: Cross multiply
    1,694,602x = 2,338,758.12 × 979,210
  4. Step 4: Simplify right side
    1,694,602x = 2,290,135,338,685.20
  5. Step 5: Solve for x
    x = 2,290,135,338,685.20/1,694,602
  6. Step 6: Final answer
    x = 1,351,429.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.