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Finding the Fourth Proportional to 418,719.88, 625,243.60 and 332,361.87

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Solution

The fourth proportional to 418,719.88, 625,243.60 and 332,361.87 is: 496,291.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,719.88 : 625,243.60 = 332,361.87 : x
  2. Step 2: Convert to fraction form
    418,719.88/625,243.60 = 332,361.87/x
  3. Step 3: Cross multiply
    418,719.88x = 625,243.60 × 332,361.87
  4. Step 4: Simplify right side
    418,719.88x = 207,807,129,806.22
  5. Step 5: Solve for x
    x = 207,807,129,806.22/418,719.88
  6. Step 6: Final answer
    x = 496,291.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.