Home / 420,895.91-580,836.34-227,303.60

Finding the Fourth Proportional to 420,895.91, 580,836.34 and 227,303.60

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Solution

The fourth proportional to 420,895.91, 580,836.34 and 227,303.60 is: 313,678.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,895.91 : 580,836.34 = 227,303.60 : x
  2. Step 2: Convert to fraction form
    420,895.91/580,836.34 = 227,303.60/x
  3. Step 3: Cross multiply
    420,895.91x = 580,836.34 × 227,303.60
  4. Step 4: Simplify right side
    420,895.91x = 132,026,189,956.31
  5. Step 5: Solve for x
    x = 132,026,189,956.31/420,895.91
  6. Step 6: Final answer
    x = 313,678.96

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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.