Home / 820,614.90-1,230,799.23-259,576.50

Finding the Fourth Proportional to 820,614.90, 1,230,799.23 and 259,576.50

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Solution

The fourth proportional to 820,614.90, 1,230,799.23 and 259,576.50 is: 389,325.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,614.90 : 1,230,799.23 = 259,576.50 : x
  2. Step 2: Convert to fraction form
    820,614.90/1,230,799.23 = 259,576.50/x
  3. Step 3: Cross multiply
    820,614.90x = 1,230,799.23 × 259,576.50
  4. Step 4: Simplify right side
    820,614.90x = 319,486,556,326.10
  5. Step 5: Solve for x
    x = 319,486,556,326.10/820,614.90
  6. Step 6: Final answer
    x = 389,325.80

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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.