Home / 820,226.10-1,230,339.15-809,166.90

Finding the Fourth Proportional to 820,226.10, 1,230,339.15 and 809,166.90

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Solution

The fourth proportional to 820,226.10, 1,230,339.15 and 809,166.90 is: 1,213,750.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,226.10 : 1,230,339.15 = 809,166.90 : x
  2. Step 2: Convert to fraction form
    820,226.10/1,230,339.15 = 809,166.90/x
  3. Step 3: Cross multiply
    820,226.10x = 1,230,339.15 × 809,166.90
  4. Step 4: Simplify right side
    820,226.10x = 995,549,715,954.14
  5. Step 5: Solve for x
    x = 995,549,715,954.14/820,226.10
  6. Step 6: Final answer
    x = 1,213,750.35

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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.