Home / 780,195.54-1,076,661.43-431,334.47

Finding the Fourth Proportional to 780,195.54, 1,076,661.43 and 431,334.47

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Solution

The fourth proportional to 780,195.54, 1,076,661.43 and 431,334.47 is: 595,236.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,195.54 : 1,076,661.43 = 431,334.47 : x
  2. Step 2: Convert to fraction form
    780,195.54/1,076,661.43 = 431,334.47/x
  3. Step 3: Cross multiply
    780,195.54x = 1,076,661.43 × 431,334.47
  4. Step 4: Simplify right side
    780,195.54x = 464,401,185,261.85
  5. Step 5: Solve for x
    x = 464,401,185,261.85/780,195.54
  6. Step 6: Final answer
    x = 595,236.91

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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.