Home / 1,217,844.69-1,827,172.73-408,309.21

Finding the Fourth Proportional to 1,217,844.69, 1,827,172.73 and 408,309.21

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Solution

The fourth proportional to 1,217,844.69, 1,827,172.73 and 408,309.21 is: 612,599.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,844.69 : 1,827,172.73 = 408,309.21 : x
  2. Step 2: Convert to fraction form
    1,217,844.69/1,827,172.73 = 408,309.21/x
  3. Step 3: Cross multiply
    1,217,844.69x = 1,827,172.73 × 408,309.21
  4. Step 4: Simplify right side
    1,217,844.69x = 746,051,454,940.62
  5. Step 5: Solve for x
    x = 746,051,454,940.62/1,217,844.69
  6. Step 6: Final answer
    x = 612,599.83

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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.