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Finding the Fourth Proportional to 418,151.76, 624,067.64 and 377,795.56

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Solution

The fourth proportional to 418,151.76, 624,067.64 and 377,795.56 is: 563,838.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,151.76 : 624,067.64 = 377,795.56 : x
  2. Step 2: Convert to fraction form
    418,151.76/624,067.64 = 377,795.56/x
  3. Step 3: Cross multiply
    418,151.76x = 624,067.64 × 377,795.56
  4. Step 4: Simplify right side
    418,151.76x = 235,769,983,531.68
  5. Step 5: Solve for x
    x = 235,769,983,531.68/418,151.76
  6. Step 6: Final answer
    x = 563,838.31

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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.