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Finding the Fourth Proportional to 505,980.62, 759,670.77 and 256,837.58

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Solution

The fourth proportional to 505,980.62, 759,670.77 and 256,837.58 is: 385,611.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,980.62 : 759,670.77 = 256,837.58 : x
  2. Step 2: Convert to fraction form
    505,980.62/759,670.77 = 256,837.58/x
  3. Step 3: Cross multiply
    505,980.62x = 759,670.77 × 256,837.58
  4. Step 4: Simplify right side
    505,980.62x = 195,112,002,163.54
  5. Step 5: Solve for x
    x = 195,112,002,163.54/505,980.62
  6. Step 6: Final answer
    x = 385,611.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.