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Finding the Fourth Proportional to 409,737.40, 565,236.60 and 273,804.72

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Solution

The fourth proportional to 409,737.40, 565,236.60 and 273,804.72 is: 377,716.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,737.40 : 565,236.60 = 273,804.72 : x
  2. Step 2: Convert to fraction form
    409,737.40/565,236.60 = 273,804.72/x
  3. Step 3: Cross multiply
    409,737.40x = 565,236.60 × 273,804.72
  4. Step 4: Simplify right side
    409,737.40x = 154,764,448,996.75
  5. Step 5: Solve for x
    x = 154,764,448,996.75/409,737.40
  6. Step 6: Final answer
    x = 377,716.19

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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.