Home / 743,431.86-1,115,148.66-203,692.71

Finding the Fourth Proportional to 743,431.86, 1,115,148.66 and 203,692.71

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Solution

The fourth proportional to 743,431.86, 1,115,148.66 and 203,692.71 is: 305,539.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,431.86 : 1,115,148.66 = 203,692.71 : x
  2. Step 2: Convert to fraction form
    743,431.86/1,115,148.66 = 203,692.71/x
  3. Step 3: Cross multiply
    743,431.86x = 1,115,148.66 × 203,692.71
  4. Step 4: Simplify right side
    743,431.86x = 227,147,652,608.27
  5. Step 5: Solve for x
    x = 227,147,652,608.27/743,431.86
  6. Step 6: Final answer
    x = 305,539.30

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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.