Home / 889,643.97-1,228,008.09-540,783.12

Finding the Fourth Proportional to 889,643.97, 1,228,008.09 and 540,783.12

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Solution

The fourth proportional to 889,643.97, 1,228,008.09 and 540,783.12 is: 746,462.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,643.97 : 1,228,008.09 = 540,783.12 : x
  2. Step 2: Convert to fraction form
    889,643.97/1,228,008.09 = 540,783.12/x
  3. Step 3: Cross multiply
    889,643.97x = 1,228,008.09 × 540,783.12
  4. Step 4: Simplify right side
    889,643.97x = 664,086,046,295.44
  5. Step 5: Solve for x
    x = 664,086,046,295.44/889,643.97
  6. Step 6: Final answer
    x = 746,462.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.