Home / 820,604.90-1,230,784.22-259,566.50

Finding the Fourth Proportional to 820,604.90, 1,230,784.22 and 259,566.50

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Solution

The fourth proportional to 820,604.90, 1,230,784.22 and 259,566.50 is: 389,310.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,604.90 : 1,230,784.22 = 259,566.50 : x
  2. Step 2: Convert to fraction form
    820,604.90/1,230,784.22 = 259,566.50/x
  3. Step 3: Cross multiply
    820,604.90x = 1,230,784.22 × 259,566.50
  4. Step 4: Simplify right side
    820,604.90x = 319,470,352,240.63
  5. Step 5: Solve for x
    x = 319,470,352,240.63/820,604.90
  6. Step 6: Final answer
    x = 389,310.80

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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.