Home / 420,837.48-580,755.70-229,851.32

Finding the Fourth Proportional to 420,837.48, 580,755.70 and 229,851.32

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Solution

The fourth proportional to 420,837.48, 580,755.70 and 229,851.32 is: 317,194.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,837.48 : 580,755.70 = 229,851.32 : x
  2. Step 2: Convert to fraction form
    420,837.48/580,755.70 = 229,851.32/x
  3. Step 3: Cross multiply
    420,837.48x = 580,755.70 × 229,851.32
  4. Step 4: Simplify right side
    420,837.48x = 133,487,464,242.52
  5. Step 5: Solve for x
    x = 133,487,464,242.52/420,837.48
  6. Step 6: Final answer
    x = 317,194.81

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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.