Home / 818,999.20-1,228,498.80-606,422.80

Finding the Fourth Proportional to 818,999.20, 1,228,498.80 and 606,422.80

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Solution

The fourth proportional to 818,999.20, 1,228,498.80 and 606,422.80 is: 909,634.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,999.20 : 1,228,498.80 = 606,422.80 : x
  2. Step 2: Convert to fraction form
    818,999.20/1,228,498.80 = 606,422.80/x
  3. Step 3: Cross multiply
    818,999.20x = 1,228,498.80 × 606,422.80
  4. Step 4: Simplify right side
    818,999.20x = 744,989,682,092.64
  5. Step 5: Solve for x
    x = 744,989,682,092.64/818,999.20
  6. Step 6: Final answer
    x = 909,634.20

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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.