Home / 743,477.54-1,115,217.11-203,738.42

Finding the Fourth Proportional to 743,477.54, 1,115,217.11 and 203,738.42

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Solution

The fourth proportional to 743,477.54, 1,115,217.11 and 203,738.42 is: 305,607.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,477.54 : 1,115,217.11 = 203,738.42 : x
  2. Step 2: Convert to fraction form
    743,477.54/1,115,217.11 = 203,738.42/x
  3. Step 3: Cross multiply
    743,477.54x = 1,115,217.11 × 203,738.42
  4. Step 4: Simplify right side
    743,477.54x = 227,212,575,245.76
  5. Step 5: Solve for x
    x = 227,212,575,245.76/743,477.54
  6. Step 6: Final answer
    x = 305,607.86

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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.