Home / 420,918.02-580,845.22-229,894.52

Finding the Fourth Proportional to 420,918.02, 580,845.22 and 229,894.52

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Solution

The fourth proportional to 420,918.02, 580,845.22 and 229,894.52 is: 317,242.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,918.02 : 580,845.22 = 229,894.52 : x
  2. Step 2: Convert to fraction form
    420,918.02/580,845.22 = 229,894.52/x
  3. Step 3: Cross multiply
    420,918.02x = 580,845.22 × 229,894.52
  4. Step 4: Simplify right side
    420,918.02x = 133,533,133,046.19
  5. Step 5: Solve for x
    x = 133,533,133,046.19/420,918.02
  6. Step 6: Final answer
    x = 317,242.61

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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.