Home / 420,918.24-580,882.78-229,932.92

Finding the Fourth Proportional to 420,918.24, 580,882.78 and 229,932.92

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Solution

The fourth proportional to 420,918.24, 580,882.78 and 229,932.92 is: 317,315.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,918.24 : 580,882.78 = 229,932.92 : x
  2. Step 2: Convert to fraction form
    420,918.24/580,882.78 = 229,932.92/x
  3. Step 3: Cross multiply
    420,918.24x = 580,882.78 × 229,932.92
  4. Step 4: Simplify right side
    420,918.24x = 133,564,073,783.12
  5. Step 5: Solve for x
    x = 133,564,073,783.12/420,918.24
  6. Step 6: Final answer
    x = 317,315.96

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1.5x scale

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.