Home / 722,230.39-996,665.64-399,933.55

Finding the Fourth Proportional to 722,230.39, 996,665.64 and 399,933.55

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Solution

The fourth proportional to 722,230.39, 996,665.64 and 399,933.55 is: 551,901.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,230.39 : 996,665.64 = 399,933.55 : x
  2. Step 2: Convert to fraction form
    722,230.39/996,665.64 = 399,933.55/x
  3. Step 3: Cross multiply
    722,230.39x = 996,665.64 × 399,933.55
  4. Step 4: Simplify right side
    722,230.39x = 398,600,027,568.22
  5. Step 5: Solve for x
    x = 398,600,027,568.22/722,230.39
  6. Step 6: Final answer
    x = 551,901.49

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Double scale
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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.