Home / 851,287.22-1,276,930.83-290,326.58

Finding the Fourth Proportional to 851,287.22, 1,276,930.83 and 290,326.58

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Solution

The fourth proportional to 851,287.22, 1,276,930.83 and 290,326.58 is: 435,489.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,287.22 : 1,276,930.83 = 290,326.58 : x
  2. Step 2: Convert to fraction form
    851,287.22/1,276,930.83 = 290,326.58/x
  3. Step 3: Cross multiply
    851,287.22x = 1,276,930.83 × 290,326.58
  4. Step 4: Simplify right side
    851,287.22x = 370,726,960,770.46
  5. Step 5: Solve for x
    x = 370,726,960,770.46/851,287.22
  6. Step 6: Final answer
    x = 435,489.87

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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.