Home / 809,620.92-1,117,281.60-447,037.92

Finding the Fourth Proportional to 809,620.92, 1,117,281.60 and 447,037.92

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Solution

The fourth proportional to 809,620.92, 1,117,281.60 and 447,037.92 is: 616,914.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,620.92 : 1,117,281.60 = 447,037.92 : x
  2. Step 2: Convert to fraction form
    809,620.92/1,117,281.60 = 447,037.92/x
  3. Step 3: Cross multiply
    809,620.92x = 1,117,281.60 × 447,037.92
  4. Step 4: Simplify right side
    809,620.92x = 499,467,242,518.27
  5. Step 5: Solve for x
    x = 499,467,242,518.27/809,620.92
  6. Step 6: Final answer
    x = 616,914.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.