Home / 887,326.20-1,330,989.30-256,260.60

Finding the Fourth Proportional to 887,326.20, 1,330,989.30 and 256,260.60

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Solution

The fourth proportional to 887,326.20, 1,330,989.30 and 256,260.60 is: 384,390.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,326.20 : 1,330,989.30 = 256,260.60 : x
  2. Step 2: Convert to fraction form
    887,326.20/1,330,989.30 = 256,260.60/x
  3. Step 3: Cross multiply
    887,326.20x = 1,330,989.30 × 256,260.60
  4. Step 4: Simplify right side
    887,326.20x = 341,080,116,611.58
  5. Step 5: Solve for x
    x = 341,080,116,611.58/887,326.20
  6. Step 6: Final answer
    x = 384,390.90

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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.