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Finding the Fourth Proportional to 379,752.77, 523,811.81 and 243,570.92

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Solution

The fourth proportional to 379,752.77, 523,811.81 and 243,570.92 is: 335,969.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,752.77 : 523,811.81 = 243,570.92 : x
  2. Step 2: Convert to fraction form
    379,752.77/523,811.81 = 243,570.92/x
  3. Step 3: Cross multiply
    379,752.77x = 523,811.81 × 243,570.92
  4. Step 4: Simplify right side
    379,752.77x = 127,585,322,458.43
  5. Step 5: Solve for x
    x = 127,585,322,458.43/379,752.77
  6. Step 6: Final answer
    x = 335,969.43

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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.