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Finding the Fourth Proportional to 505,094.80, 756,259.80 and 394,502.80

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Solution

The fourth proportional to 505,094.80, 756,259.80 and 394,502.80 is: 590,674.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,094.80 : 756,259.80 = 394,502.80 : x
  2. Step 2: Convert to fraction form
    505,094.80/756,259.80 = 394,502.80/x
  3. Step 3: Cross multiply
    505,094.80x = 756,259.80 × 394,502.80
  4. Step 4: Simplify right side
    505,094.80x = 298,346,608,627.44
  5. Step 5: Solve for x
    x = 298,346,608,627.44/505,094.80
  6. Step 6: Final answer
    x = 590,674.48

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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.