Home / 843,999.13-1,265,386.33-394,468.57

Finding the Fourth Proportional to 843,999.13, 1,265,386.33 and 394,468.57

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Solution

The fourth proportional to 843,999.13, 1,265,386.33 and 394,468.57 is: 591,416.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,999.13 : 1,265,386.33 = 394,468.57 : x
  2. Step 2: Convert to fraction form
    843,999.13/1,265,386.33 = 394,468.57/x
  3. Step 3: Cross multiply
    843,999.13x = 1,265,386.33 × 394,468.57
  4. Step 4: Simplify right side
    843,999.13x = 499,155,136,092.65
  5. Step 5: Solve for x
    x = 499,155,136,092.65/843,999.13
  6. Step 6: Final answer
    x = 591,416.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.