Home / 851,145.76-1,276,905.35-252,153.73

Finding the Fourth Proportional to 851,145.76, 1,276,905.35 and 252,153.73

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Solution

The fourth proportional to 851,145.76, 1,276,905.35 and 252,153.73 is: 378,285.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,145.76 : 1,276,905.35 = 252,153.73 : x
  2. Step 2: Convert to fraction form
    851,145.76/1,276,905.35 = 252,153.73/x
  3. Step 3: Cross multiply
    851,145.76x = 1,276,905.35 × 252,153.73
  4. Step 4: Simplify right side
    851,145.76x = 321,976,446,859.46
  5. Step 5: Solve for x
    x = 321,976,446,859.46/851,145.76
  6. Step 6: Final answer
    x = 378,285.91

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Double scale
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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.