Home / 809,982.16-1,117,752.96-447,399.52

Finding the Fourth Proportional to 809,982.16, 1,117,752.96 and 447,399.52

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Solution

The fourth proportional to 809,982.16, 1,117,752.96 and 447,399.52 is: 617,398.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,982.16 : 1,117,752.96 = 447,399.52 : x
  2. Step 2: Convert to fraction form
    809,982.16/1,117,752.96 = 447,399.52/x
  3. Step 3: Cross multiply
    809,982.16x = 1,117,752.96 × 447,399.52
  4. Step 4: Simplify right side
    809,982.16x = 500,082,137,782.58
  5. Step 5: Solve for x
    x = 500,082,137,782.58/809,982.16
  6. Step 6: Final answer
    x = 617,398.95

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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.