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Finding the Fourth Proportional to 538,133.99, 807,202 and 505,251.08

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Solution

The fourth proportional to 538,133.99, 807,202 and 505,251.08 is: 757,877.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,133.99 : 807,202 = 505,251.08 : x
  2. Step 2: Convert to fraction form
    538,133.99/807,202 = 505,251.08/x
  3. Step 3: Cross multiply
    538,133.99x = 807,202 × 505,251.08
  4. Step 4: Simplify right side
    538,133.99x = 407,839,682,278.16
  5. Step 5: Solve for x
    x = 407,839,682,278.16/538,133.99
  6. Step 6: Final answer
    x = 757,877.57

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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.