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Finding the Fourth Proportional to 512,211.60, 768,317.40 and 450,003.60

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Solution

The fourth proportional to 512,211.60, 768,317.40 and 450,003.60 is: 675,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,211.60 : 768,317.40 = 450,003.60 : x
  2. Step 2: Convert to fraction form
    512,211.60/768,317.40 = 450,003.60/x
  3. Step 3: Cross multiply
    512,211.60x = 768,317.40 × 450,003.60
  4. Step 4: Simplify right side
    512,211.60x = 345,745,595,942.64
  5. Step 5: Solve for x
    x = 345,745,595,942.64/512,211.60
  6. Step 6: Final answer
    x = 675,005.40

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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.