Home / 809,712.48-1,117,402.92-447,137.04

Finding the Fourth Proportional to 809,712.48, 1,117,402.92 and 447,137.04

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Solution

The fourth proportional to 809,712.48, 1,117,402.92 and 447,137.04 is: 617,048.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,712.48 : 1,117,402.92 = 447,137.04 : x
  2. Step 2: Convert to fraction form
    809,712.48/1,117,402.92 = 447,137.04/x
  3. Step 3: Cross multiply
    809,712.48x = 1,117,402.92 × 447,137.04
  4. Step 4: Simplify right side
    809,712.48x = 499,632,234,136.16
  5. Step 5: Solve for x
    x = 499,632,234,136.16/809,712.48
  6. Step 6: Final answer
    x = 617,048.95

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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.