Home / 743,438.22-1,115,158.22-203,699.12

Finding the Fourth Proportional to 743,438.22, 1,115,158.22 and 203,699.12

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Solution

The fourth proportional to 743,438.22, 1,115,158.22 and 203,699.12 is: 305,548.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,438.22 : 1,115,158.22 = 203,699.12 : x
  2. Step 2: Convert to fraction form
    743,438.22/1,115,158.22 = 203,699.12/x
  3. Step 3: Cross multiply
    743,438.22x = 1,115,158.22 × 203,699.12
  4. Step 4: Simplify right side
    743,438.22x = 227,156,741,480.48
  5. Step 5: Solve for x
    x = 227,156,741,480.48/743,438.22
  6. Step 6: Final answer
    x = 305,548.91

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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.