Home / 1,420,422.66-2,131,087.79-508,989.74

Finding the Fourth Proportional to 1,420,422.66, 2,131,087.79 and 508,989.74

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Solution

The fourth proportional to 1,420,422.66, 2,131,087.79 and 508,989.74 is: 763,647.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,422.66 : 2,131,087.79 = 508,989.74 : x
  2. Step 2: Convert to fraction form
    1,420,422.66/2,131,087.79 = 508,989.74/x
  3. Step 3: Cross multiply
    1,420,422.66x = 2,131,087.79 × 508,989.74
  4. Step 4: Simplify right side
    1,420,422.66x = 1,084,701,810,766.31
  5. Step 5: Solve for x
    x = 1,084,701,810,766.31/1,420,422.66
  6. Step 6: Final answer
    x = 763,647.22

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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.