Home / 820,346.20-1,230,519.30-745,550.80

Finding the Fourth Proportional to 820,346.20, 1,230,519.30 and 745,550.80

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Solution

The fourth proportional to 820,346.20, 1,230,519.30 and 745,550.80 is: 1,118,326.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,346.20 : 1,230,519.30 = 745,550.80 : x
  2. Step 2: Convert to fraction form
    820,346.20/1,230,519.30 = 745,550.80/x
  3. Step 3: Cross multiply
    820,346.20x = 1,230,519.30 × 745,550.80
  4. Step 4: Simplify right side
    820,346.20x = 917,414,648,530.44
  5. Step 5: Solve for x
    x = 917,414,648,530.44/820,346.20
  6. Step 6: Final answer
    x = 1,118,326.20

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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.