Home / 420,965.52-580,943.82-251,298.12

Finding the Fourth Proportional to 420,965.52, 580,943.82 and 251,298.12

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Solution

The fourth proportional to 420,965.52, 580,943.82 and 251,298.12 is: 346,798.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,965.52 : 580,943.82 = 251,298.12 : x
  2. Step 2: Convert to fraction form
    420,965.52/580,943.82 = 251,298.12/x
  3. Step 3: Cross multiply
    420,965.52x = 580,943.82 × 251,298.12
  4. Step 4: Simplify right side
    420,965.52x = 145,990,089,791.62
  5. Step 5: Solve for x
    x = 145,990,089,791.62/420,965.52
  6. Step 6: Final answer
    x = 346,798.21

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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.