Home / 436,665.48-654,998.22-121,122.38

Finding the Fourth Proportional to 436,665.48, 654,998.22 and 121,122.38

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Solution

The fourth proportional to 436,665.48, 654,998.22 and 121,122.38 is: 181,683.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,665.48 : 654,998.22 = 121,122.38 : x
  2. Step 2: Convert to fraction form
    436,665.48/654,998.22 = 121,122.38/x
  3. Step 3: Cross multiply
    436,665.48x = 654,998.22 × 121,122.38
  4. Step 4: Simplify right side
    436,665.48x = 79,334,942,696.55
  5. Step 5: Solve for x
    x = 79,334,942,696.55/436,665.48
  6. Step 6: Final answer
    x = 181,683.57

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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.