Home / 684,706.20-1,027,059.30-211,390.80

Finding the Fourth Proportional to 684,706.20, 1,027,059.30 and 211,390.80

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Solution

The fourth proportional to 684,706.20, 1,027,059.30 and 211,390.80 is: 317,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,706.20 : 1,027,059.30 = 211,390.80 : x
  2. Step 2: Convert to fraction form
    684,706.20/1,027,059.30 = 211,390.80/x
  3. Step 3: Cross multiply
    684,706.20x = 1,027,059.30 × 211,390.80
  4. Step 4: Simplify right side
    684,706.20x = 217,110,887,074.44
  5. Step 5: Solve for x
    x = 217,110,887,074.44/684,706.20
  6. Step 6: Final answer
    x = 317,086.20

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Similar ratio
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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.