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Finding the Fourth Proportional to 723,562.50, 998,516.25 and 401,321.94

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Solution

The fourth proportional to 723,562.50, 998,516.25 and 401,321.94 is: 553,824.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,562.50 : 998,516.25 = 401,321.94 : x
  2. Step 2: Convert to fraction form
    723,562.50/998,516.25 = 401,321.94/x
  3. Step 3: Cross multiply
    723,562.50x = 998,516.25 × 401,321.94
  4. Step 4: Simplify right side
    723,562.50x = 400,726,478,571.53
  5. Step 5: Solve for x
    x = 400,726,478,571.53/723,562.50
  6. Step 6: Final answer
    x = 553,824.28

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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.