Home / 819,740.80-1,229,611.20-579,203.20

Finding the Fourth Proportional to 819,740.80, 1,229,611.20 and 579,203.20

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Solution

The fourth proportional to 819,740.80, 1,229,611.20 and 579,203.20 is: 868,804.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,740.80 : 1,229,611.20 = 579,203.20 : x
  2. Step 2: Convert to fraction form
    819,740.80/1,229,611.20 = 579,203.20/x
  3. Step 3: Cross multiply
    819,740.80x = 1,229,611.20 × 579,203.20
  4. Step 4: Simplify right side
    819,740.80x = 712,194,741,795.84
  5. Step 5: Solve for x
    x = 712,194,741,795.84/819,740.80
  6. Step 6: Final answer
    x = 868,804.80

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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.