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Finding the Fourth Proportional to 558,441.96, 770,650.98 and 303,794.28

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Solution

The fourth proportional to 558,441.96, 770,650.98 and 303,794.28 is: 419,236.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,441.96 : 770,650.98 = 303,794.28 : x
  2. Step 2: Convert to fraction form
    558,441.96/770,650.98 = 303,794.28/x
  3. Step 3: Cross multiply
    558,441.96x = 770,650.98 × 303,794.28
  4. Step 4: Simplify right side
    558,441.96x = 234,119,359,600.39
  5. Step 5: Solve for x
    x = 234,119,359,600.39/558,441.96
  6. Step 6: Final answer
    x = 419,236.69

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.