Home / 864,008.20-1,296,012.30-264,964.60

Finding the Fourth Proportional to 864,008.20, 1,296,012.30 and 264,964.60

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Solution

The fourth proportional to 864,008.20, 1,296,012.30 and 264,964.60 is: 397,446.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,008.20 : 1,296,012.30 = 264,964.60 : x
  2. Step 2: Convert to fraction form
    864,008.20/1,296,012.30 = 264,964.60/x
  3. Step 3: Cross multiply
    864,008.20x = 1,296,012.30 × 264,964.60
  4. Step 4: Simplify right side
    864,008.20x = 343,397,380,664.58
  5. Step 5: Solve for x
    x = 343,397,380,664.58/864,008.20
  6. Step 6: Final answer
    x = 397,446.90

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Double scale
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Similar ratio
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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.