Home / 505,120.76-757,653.44-305,387.52

Finding the Fourth Proportional to 505,120.76, 757,653.44 and 305,387.52

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Solution

The fourth proportional to 505,120.76, 757,653.44 and 305,387.52 is: 458,064.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,120.76 : 757,653.44 = 305,387.52 : x
  2. Step 2: Convert to fraction form
    505,120.76/757,653.44 = 305,387.52/x
  3. Step 3: Cross multiply
    505,120.76x = 757,653.44 × 305,387.52
  4. Step 4: Simplify right side
    505,120.76x = 231,377,905,061.07
  5. Step 5: Solve for x
    x = 231,377,905,061.07/505,120.76
  6. Step 6: Final answer
    x = 458,064.53

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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.