Home / 874,184.20-1,310,556.30-394,443.40

Finding the Fourth Proportional to 874,184.20, 1,310,556.30 and 394,443.40

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Solution

The fourth proportional to 874,184.20, 1,310,556.30 and 394,443.40 is: 591,340.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,184.20 : 1,310,556.30 = 394,443.40 : x
  2. Step 2: Convert to fraction form
    874,184.20/1,310,556.30 = 394,443.40/x
  3. Step 3: Cross multiply
    874,184.20x = 1,310,556.30 × 394,443.40
  4. Step 4: Simplify right side
    874,184.20x = 516,940,282,863.42
  5. Step 5: Solve for x
    x = 516,940,282,863.42/874,184.20
  6. Step 6: Final answer
    x = 591,340.23

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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.