Home / 746,905.32-1,120,356.12-320,164.44

Finding the Fourth Proportional to 746,905.32, 1,120,356.12 and 320,164.44

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Solution

The fourth proportional to 746,905.32, 1,120,356.12 and 320,164.44 is: 480,245.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,905.32 : 1,120,356.12 = 320,164.44 : x
  2. Step 2: Convert to fraction form
    746,905.32/1,120,356.12 = 320,164.44/x
  3. Step 3: Cross multiply
    746,905.32x = 1,120,356.12 × 320,164.44
  4. Step 4: Simplify right side
    746,905.32x = 358,698,189,760.37
  5. Step 5: Solve for x
    x = 358,698,189,760.37/746,905.32
  6. Step 6: Final answer
    x = 480,245.86

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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.