Home / 1,238,369.69-1,709,136.97-755,215.11

Finding the Fourth Proportional to 1,238,369.69, 1,709,136.97 and 755,215.11

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Solution

The fourth proportional to 1,238,369.69, 1,709,136.97 and 755,215.11 is: 1,042,310.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,369.69 : 1,709,136.97 = 755,215.11 : x
  2. Step 2: Convert to fraction form
    1,238,369.69/1,709,136.97 = 755,215.11/x
  3. Step 3: Cross multiply
    1,238,369.69x = 1,709,136.97 × 755,215.11
  4. Step 4: Simplify right side
    1,238,369.69x = 1,290,766,056,767.22
  5. Step 5: Solve for x
    x = 1,290,766,056,767.22/1,238,369.69
  6. Step 6: Final answer
    x = 1,042,310.76

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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.