Home / 516,845.31-713,261.96-312,933.53

Finding the Fourth Proportional to 516,845.31, 713,261.96 and 312,933.53

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Solution

The fourth proportional to 516,845.31, 713,261.96 and 312,933.53 is: 431,857.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,845.31 : 713,261.96 = 312,933.53 : x
  2. Step 2: Convert to fraction form
    516,845.31/713,261.96 = 312,933.53/x
  3. Step 3: Cross multiply
    516,845.31x = 713,261.96 × 312,933.53
  4. Step 4: Simplify right side
    516,845.31x = 223,203,577,826.54
  5. Step 5: Solve for x
    x = 223,203,577,826.54/516,845.31
  6. Step 6: Final answer
    x = 431,857.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.