Home / 819,986.39-1,230,334.80-440,464.29

Finding the Fourth Proportional to 819,986.39, 1,230,334.80 and 440,464.29

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Solution

The fourth proportional to 819,986.39, 1,230,334.80 and 440,464.29 is: 660,887.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,986.39 : 1,230,334.80 = 440,464.29 : x
  2. Step 2: Convert to fraction form
    819,986.39/1,230,334.80 = 440,464.29/x
  3. Step 3: Cross multiply
    819,986.39x = 1,230,334.80 × 440,464.29
  4. Step 4: Simplify right side
    819,986.39x = 541,918,540,356.41
  5. Step 5: Solve for x
    x = 541,918,540,356.41/819,986.39
  6. Step 6: Final answer
    x = 660,887.23

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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.