Home / 789,469.34-1,183,750.72-309,134.76

Finding the Fourth Proportional to 789,469.34, 1,183,750.72 and 309,134.76

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Solution

The fourth proportional to 789,469.34, 1,183,750.72 and 309,134.76 is: 463,524.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,469.34 : 1,183,750.72 = 309,134.76 : x
  2. Step 2: Convert to fraction form
    789,469.34/1,183,750.72 = 309,134.76/x
  3. Step 3: Cross multiply
    789,469.34x = 1,183,750.72 × 309,134.76
  4. Step 4: Simplify right side
    789,469.34x = 365,938,494,727.03
  5. Step 5: Solve for x
    x = 365,938,494,727.03/789,469.34
  6. Step 6: Final answer
    x = 463,524.64

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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.