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Finding the Fourth Proportional to 526,728.87, 726,199.56 and 335,672.55

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Solution

The fourth proportional to 526,728.87, 726,199.56 and 335,672.55 is: 462,790.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,728.87 : 726,199.56 = 335,672.55 : x
  2. Step 2: Convert to fraction form
    526,728.87/726,199.56 = 335,672.55/x
  3. Step 3: Cross multiply
    526,728.87x = 726,199.56 × 335,672.55
  4. Step 4: Simplify right side
    526,728.87x = 243,765,258,114.08
  5. Step 5: Solve for x
    x = 243,765,258,114.08/526,728.87
  6. Step 6: Final answer
    x = 462,790.77

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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.