Home / 851,148.76-1,276,909.86-252,156.73

Finding the Fourth Proportional to 851,148.76, 1,276,909.86 and 252,156.73

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Solution

The fourth proportional to 851,148.76, 1,276,909.86 and 252,156.73 is: 378,290.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,148.76 : 1,276,909.86 = 252,156.73 : x
  2. Step 2: Convert to fraction form
    851,148.76/1,276,909.86 = 252,156.73/x
  3. Step 3: Cross multiply
    851,148.76x = 1,276,909.86 × 252,156.73
  4. Step 4: Simplify right side
    851,148.76x = 321,981,414,802.36
  5. Step 5: Solve for x
    x = 321,981,414,802.36/851,148.76
  6. Step 6: Final answer
    x = 378,290.41

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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.