Home / 719,680.23-1,079,520.21-214,248.60

Finding the Fourth Proportional to 719,680.23, 1,079,520.21 and 214,248.60

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Solution

The fourth proportional to 719,680.23, 1,079,520.21 and 214,248.60 is: 321,372.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,680.23 : 1,079,520.21 = 214,248.60 : x
  2. Step 2: Convert to fraction form
    719,680.23/1,079,520.21 = 214,248.60/x
  3. Step 3: Cross multiply
    719,680.23x = 1,079,520.21 × 214,248.60
  4. Step 4: Simplify right side
    719,680.23x = 231,285,693,664.21
  5. Step 5: Solve for x
    x = 231,285,693,664.21/719,680.23
  6. Step 6: Final answer
    x = 321,372.86

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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.