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Finding the Fourth Proportional to 663,887.77, 995,830.74 and 264,808.78

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Solution

The fourth proportional to 663,887.77, 995,830.74 and 264,808.78 is: 397,212.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,887.77 : 995,830.74 = 264,808.78 : x
  2. Step 2: Convert to fraction form
    663,887.77/995,830.74 = 264,808.78/x
  3. Step 3: Cross multiply
    663,887.77x = 995,830.74 × 264,808.78
  4. Step 4: Simplify right side
    663,887.77x = 263,704,720,856.32
  5. Step 5: Solve for x
    x = 263,704,720,856.32/663,887.77
  6. Step 6: Final answer
    x = 397,212.80

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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.