Home / 420,206.20-579,932.90-233,956.42

Finding the Fourth Proportional to 420,206.20, 579,932.90 and 233,956.42

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Solution

The fourth proportional to 420,206.20, 579,932.90 and 233,956.42 is: 322,886.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,206.20 : 579,932.90 = 233,956.42 : x
  2. Step 2: Convert to fraction form
    420,206.20/579,932.90 = 233,956.42/x
  3. Step 3: Cross multiply
    420,206.20x = 579,932.90 × 233,956.42
  4. Step 4: Simplify right side
    420,206.20x = 135,679,025,124.22
  5. Step 5: Solve for x
    x = 135,679,025,124.22/420,206.20
  6. Step 6: Final answer
    x = 322,886.78

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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.