Home / 830,302.80-1,245,454.20-664,414.80

Finding the Fourth Proportional to 830,302.80, 1,245,454.20 and 664,414.80

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Solution

The fourth proportional to 830,302.80, 1,245,454.20 and 664,414.80 is: 996,622.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,302.80 : 1,245,454.20 = 664,414.80 : x
  2. Step 2: Convert to fraction form
    830,302.80/1,245,454.20 = 664,414.80/x
  3. Step 3: Cross multiply
    830,302.80x = 1,245,454.20 × 664,414.80
  4. Step 4: Simplify right side
    830,302.80x = 827,498,203,202.16
  5. Step 5: Solve for x
    x = 827,498,203,202.16/830,302.80
  6. Step 6: Final answer
    x = 996,622.20

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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.