Home / 379,011.37-522,976.21-217,836.29

Finding the Fourth Proportional to 379,011.37, 522,976.21 and 217,836.29

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Solution

The fourth proportional to 379,011.37, 522,976.21 and 217,836.29 is: 300,579.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,011.37 : 522,976.21 = 217,836.29 : x
  2. Step 2: Convert to fraction form
    379,011.37/522,976.21 = 217,836.29/x
  3. Step 3: Cross multiply
    379,011.37x = 522,976.21 × 217,836.29
  4. Step 4: Simplify right side
    379,011.37x = 113,923,197,344.66
  5. Step 5: Solve for x
    x = 113,923,197,344.66/379,011.37
  6. Step 6: Final answer
    x = 300,579.89

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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.