Home / 1,168,223.09-1,612,168.85-685,136.66

Finding the Fourth Proportional to 1,168,223.09, 1,612,168.85 and 685,136.66

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Solution

The fourth proportional to 1,168,223.09, 1,612,168.85 and 685,136.66 is: 945,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,223.09 : 1,612,168.85 = 685,136.66 : x
  2. Step 2: Convert to fraction form
    1,168,223.09/1,612,168.85 = 685,136.66/x
  3. Step 3: Cross multiply
    1,168,223.09x = 1,612,168.85 × 685,136.66
  4. Step 4: Simplify right side
    1,168,223.09x = 1,104,555,974,897.04
  5. Step 5: Solve for x
    x = 1,104,555,974,897.04/1,168,223.09
  6. Step 6: Final answer
    x = 945,500.90

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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.