Home / 392,529.32-541,688.90-220,423.34

Finding the Fourth Proportional to 392,529.32, 541,688.90 and 220,423.34

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Solution

The fourth proportional to 392,529.32, 541,688.90 and 220,423.34 is: 304,183.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,529.32 : 541,688.90 = 220,423.34 : x
  2. Step 2: Convert to fraction form
    392,529.32/541,688.90 = 220,423.34/x
  3. Step 3: Cross multiply
    392,529.32x = 541,688.90 × 220,423.34
  4. Step 4: Simplify right side
    392,529.32x = 119,400,876,578.93
  5. Step 5: Solve for x
    x = 119,400,876,578.93/392,529.32
  6. Step 6: Final answer
    x = 304,183.33

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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.