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Finding the Fourth Proportional to 663,620.86, 995,434.84 and 164,984.86

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Solution

The fourth proportional to 663,620.86, 995,434.84 and 164,984.86 is: 247,478.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,620.86 : 995,434.84 = 164,984.86 : x
  2. Step 2: Convert to fraction form
    663,620.86/995,434.84 = 164,984.86/x
  3. Step 3: Cross multiply
    663,620.86x = 995,434.84 × 164,984.86
  4. Step 4: Simplify right side
    663,620.86x = 164,231,675,434.17
  5. Step 5: Solve for x
    x = 164,231,675,434.17/663,620.86
  6. Step 6: Final answer
    x = 247,478.17

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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.