Home / 521,479.69-782,341.58-161,631.73

Finding the Fourth Proportional to 521,479.69, 782,341.58 and 161,631.73

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Solution

The fourth proportional to 521,479.69, 782,341.58 and 161,631.73 is: 242,485.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,479.69 : 782,341.58 = 161,631.73 : x
  2. Step 2: Convert to fraction form
    521,479.69/782,341.58 = 161,631.73/x
  3. Step 3: Cross multiply
    521,479.69x = 782,341.58 × 161,631.73
  4. Step 4: Simplify right side
    521,479.69x = 126,451,223,026.33
  5. Step 5: Solve for x
    x = 126,451,223,026.33/521,479.69
  6. Step 6: Final answer
    x = 242,485.42

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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.