Home / 722,246.42-996,687.68-399,949.58

Finding the Fourth Proportional to 722,246.42, 996,687.68 and 399,949.58

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Solution

The fourth proportional to 722,246.42, 996,687.68 and 399,949.58 is: 551,923.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,246.42 : 996,687.68 = 399,949.58 : x
  2. Step 2: Convert to fraction form
    722,246.42/996,687.68 = 399,949.58/x
  3. Step 3: Cross multiply
    722,246.42x = 996,687.68 × 399,949.58
  4. Step 4: Simplify right side
    722,246.42x = 398,624,819,007.17
  5. Step 5: Solve for x
    x = 398,624,819,007.17/722,246.42
  6. Step 6: Final answer
    x = 551,923.57

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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.