Home / 420,777.60-580,677.71-229,796.61

Finding the Fourth Proportional to 420,777.60, 580,677.71 and 229,796.61

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Solution

The fourth proportional to 420,777.60, 580,677.71 and 229,796.61 is: 317,121.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,777.60 : 580,677.71 = 229,796.61 : x
  2. Step 2: Convert to fraction form
    420,777.60/580,677.71 = 229,796.61/x
  3. Step 3: Cross multiply
    420,777.60x = 580,677.71 × 229,796.61
  4. Step 4: Simplify right side
    420,777.60x = 133,437,768,111.58
  5. Step 5: Solve for x
    x = 133,437,768,111.58/420,777.60
  6. Step 6: Final answer
    x = 317,121.84

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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.