Home / 420,538.08-580,255.92-241,655.52

Finding the Fourth Proportional to 420,538.08, 580,255.92 and 241,655.52

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Solution

The fourth proportional to 420,538.08, 580,255.92 and 241,655.52 is: 333,434.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,538.08 : 580,255.92 = 241,655.52 : x
  2. Step 2: Convert to fraction form
    420,538.08/580,255.92 = 241,655.52/x
  3. Step 3: Cross multiply
    420,538.08x = 580,255.92 × 241,655.52
  4. Step 4: Simplify right side
    420,538.08x = 140,222,046,080.68
  5. Step 5: Solve for x
    x = 140,222,046,080.68/420,538.08
  6. Step 6: Final answer
    x = 333,434.84

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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.