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Finding the Fourth Proportional to 538,131.15, 807,197.73 and 505,248.23

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Solution

The fourth proportional to 538,131.15, 807,197.73 and 505,248.23 is: 757,873.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,131.15 : 807,197.73 = 505,248.23 : x
  2. Step 2: Convert to fraction form
    538,131.15/807,197.73 = 505,248.23/x
  3. Step 3: Cross multiply
    538,131.15x = 807,197.73 × 505,248.23
  4. Step 4: Simplify right side
    538,131.15x = 407,835,224,342.52
  5. Step 5: Solve for x
    x = 407,835,224,342.52/538,131.15
  6. Step 6: Final answer
    x = 757,873.29

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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.