Home / 1,855,614.78-2,778,696.09-1,222,609.98

Finding the Fourth Proportional to 1,855,614.78, 2,778,696.09 and 1,222,609.98

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Solution

The fourth proportional to 1,855,614.78, 2,778,696.09 and 1,222,609.98 is: 1,830,801.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855,614.78 : 2,778,696.09 = 1,222,609.98 : x
  2. Step 2: Convert to fraction form
    1,855,614.78/2,778,696.09 = 1,222,609.98/x
  3. Step 3: Cross multiply
    1,855,614.78x = 2,778,696.09 × 1,222,609.98
  4. Step 4: Simplify right side
    1,855,614.78x = 3,397,261,571,020.98
  5. Step 5: Solve for x
    x = 3,397,261,571,020.98/1,855,614.78
  6. Step 6: Final answer
    x = 1,830,801.09

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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.