Home / 420,219.24-579,900.51-229,230.96

Finding the Fourth Proportional to 420,219.24, 579,900.51 and 229,230.96

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Solution

The fourth proportional to 420,219.24, 579,900.51 and 229,230.96 is: 316,337.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,219.24 : 579,900.51 = 229,230.96 : x
  2. Step 2: Convert to fraction form
    420,219.24/579,900.51 = 229,230.96/x
  3. Step 3: Cross multiply
    420,219.24x = 579,900.51 × 229,230.96
  4. Step 4: Simplify right side
    420,219.24x = 132,931,150,611.79
  5. Step 5: Solve for x
    x = 132,931,150,611.79/420,219.24
  6. Step 6: Final answer
    x = 316,337.61

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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.