Home / 780,349.25-1,076,969.49-440,839.37

Finding the Fourth Proportional to 780,349.25, 1,076,969.49 and 440,839.37

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Solution

The fourth proportional to 780,349.25, 1,076,969.49 and 440,839.37 is: 608,407.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,349.25 : 1,076,969.49 = 440,839.37 : x
  2. Step 2: Convert to fraction form
    780,349.25/1,076,969.49 = 440,839.37/x
  3. Step 3: Cross multiply
    780,349.25x = 1,076,969.49 × 440,839.37
  4. Step 4: Simplify right side
    780,349.25x = 474,770,551,480.82
  5. Step 5: Solve for x
    x = 474,770,551,480.82/780,349.25
  6. Step 6: Final answer
    x = 608,407.78

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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.