Home / 722,445.26-996,930.51-400,136.18

Finding the Fourth Proportional to 722,445.26, 996,930.51 and 400,136.18

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Solution

The fourth proportional to 722,445.26, 996,930.51 and 400,136.18 is: 552,163.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,445.26 : 996,930.51 = 400,136.18 : x
  2. Step 2: Convert to fraction form
    722,445.26/996,930.51 = 400,136.18/x
  3. Step 3: Cross multiply
    722,445.26x = 996,930.51 × 400,136.18
  4. Step 4: Simplify right side
    722,445.26x = 398,907,965,996.85
  5. Step 5: Solve for x
    x = 398,907,965,996.85/722,445.26
  6. Step 6: Final answer
    x = 552,163.59

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1.5x scale

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.