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Finding the Fourth Proportional to 512,021.63, 767,794.86 and 298,850.90

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Solution

The fourth proportional to 512,021.63, 767,794.86 and 298,850.90 is: 448,137.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,021.63 : 767,794.86 = 298,850.90 : x
  2. Step 2: Convert to fraction form
    512,021.63/767,794.86 = 298,850.90/x
  3. Step 3: Cross multiply
    512,021.63x = 767,794.86 × 298,850.90
  4. Step 4: Simplify right side
    512,021.63x = 229,456,184,926.37
  5. Step 5: Solve for x
    x = 229,456,184,926.37/512,021.63
  6. Step 6: Final answer
    x = 448,137.68

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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.