Home / 1,139,136.35-1,571,990.90-622,891.89

Finding the Fourth Proportional to 1,139,136.35, 1,571,990.90 and 622,891.89

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Solution

The fourth proportional to 1,139,136.35, 1,571,990.90 and 622,891.89 is: 859,581.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,136.35 : 1,571,990.90 = 622,891.89 : x
  2. Step 2: Convert to fraction form
    1,139,136.35/1,571,990.90 = 622,891.89/x
  3. Step 3: Cross multiply
    1,139,136.35x = 1,571,990.90 × 622,891.89
  4. Step 4: Simplify right side
    1,139,136.35x = 979,180,379,649.34
  5. Step 5: Solve for x
    x = 979,180,379,649.34/1,139,136.35
  6. Step 6: Final answer
    x = 859,581.37

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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.