Home / 494,001.09-681,712.59-279,136.53

Finding the Fourth Proportional to 494,001.09, 681,712.59 and 279,136.53

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Solution

The fourth proportional to 494,001.09, 681,712.59 and 279,136.53 is: 385,203.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,001.09 : 681,712.59 = 279,136.53 : x
  2. Step 2: Convert to fraction form
    494,001.09/681,712.59 = 279,136.53/x
  3. Step 3: Cross multiply
    494,001.09x = 681,712.59 × 279,136.53
  4. Step 4: Simplify right side
    494,001.09x = 190,290,886,829.91
  5. Step 5: Solve for x
    x = 190,290,886,829.91/494,001.09
  6. Step 6: Final answer
    x = 385,203.37

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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.