Home / 1,289,674.80-1,934,512.20-818,449.20

Finding the Fourth Proportional to 1,289,674.80, 1,934,512.20 and 818,449.20

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Solution

The fourth proportional to 1,289,674.80, 1,934,512.20 and 818,449.20 is: 1,227,673.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,674.80 : 1,934,512.20 = 818,449.20 : x
  2. Step 2: Convert to fraction form
    1,289,674.80/1,934,512.20 = 818,449.20/x
  3. Step 3: Cross multiply
    1,289,674.80x = 1,934,512.20 × 818,449.20
  4. Step 4: Simplify right side
    1,289,674.80x = 1,583,299,962,480.24
  5. Step 5: Solve for x
    x = 1,583,299,962,480.24/1,289,674.80
  6. Step 6: Final answer
    x = 1,227,673.80

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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.