Home / 859,520.52-1,289,293.74-326,786.76

Finding the Fourth Proportional to 859,520.52, 1,289,293.74 and 326,786.76

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Solution

The fourth proportional to 859,520.52, 1,289,293.74 and 326,786.76 is: 490,185.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,520.52 : 1,289,293.74 = 326,786.76 : x
  2. Step 2: Convert to fraction form
    859,520.52/1,289,293.74 = 326,786.76/x
  3. Step 3: Cross multiply
    859,520.52x = 1,289,293.74 × 326,786.76
  4. Step 4: Simplify right side
    859,520.52x = 421,324,123,982.88
  5. Step 5: Solve for x
    x = 421,324,123,982.88/859,520.52
  6. Step 6: Final answer
    x = 490,185.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.