Home / 420,918.54-580,845.91-229,895.02

Finding the Fourth Proportional to 420,918.54, 580,845.91 and 229,895.02

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Solution

The fourth proportional to 420,918.54, 580,845.91 and 229,895.02 is: 317,243.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,918.54 : 580,845.91 = 229,895.02 : x
  2. Step 2: Convert to fraction form
    420,918.54/580,845.91 = 229,895.02/x
  3. Step 3: Cross multiply
    420,918.54x = 580,845.91 × 229,895.02
  4. Step 4: Simplify right side
    420,918.54x = 133,533,582,096.37
  5. Step 5: Solve for x
    x = 133,533,582,096.37/420,918.54
  6. Step 6: Final answer
    x = 317,243.29

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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.