Home / 505,419.21-757,474.40-205,551.47

Finding the Fourth Proportional to 505,419.21, 757,474.40 and 205,551.47

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Solution

The fourth proportional to 505,419.21, 757,474.40 and 205,551.47 is: 308,061.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,419.21 : 757,474.40 = 205,551.47 : x
  2. Step 2: Convert to fraction form
    505,419.21/757,474.40 = 205,551.47/x
  3. Step 3: Cross multiply
    505,419.21x = 757,474.40 × 205,551.47
  4. Step 4: Simplify right side
    505,419.21x = 155,699,978,814.93
  5. Step 5: Solve for x
    x = 155,699,978,814.93/505,419.21
  6. Step 6: Final answer
    x = 308,061.06

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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.