Home / 885,642.53-1,222,147.37-493,195.73

Finding the Fourth Proportional to 885,642.53, 1,222,147.37 and 493,195.73

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Solution

The fourth proportional to 885,642.53, 1,222,147.37 and 493,195.73 is: 680,588.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,642.53 : 1,222,147.37 = 493,195.73 : x
  2. Step 2: Convert to fraction form
    885,642.53/1,222,147.37 = 493,195.73/x
  3. Step 3: Cross multiply
    885,642.53x = 1,222,147.37 × 493,195.73
  4. Step 4: Simplify right side
    885,642.53x = 602,757,859,436.98
  5. Step 5: Solve for x
    x = 602,757,859,436.98/885,642.53
  6. Step 6: Final answer
    x = 680,588.21

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Double scale
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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.