Home / 780,141.78-1,076,616.97-440,610.03

Finding the Fourth Proportional to 780,141.78, 1,076,616.97 and 440,610.03

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Solution

The fourth proportional to 780,141.78, 1,076,616.97 and 440,610.03 is: 608,053.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,141.78 : 1,076,616.97 = 440,610.03 : x
  2. Step 2: Convert to fraction form
    780,141.78/1,076,616.97 = 440,610.03/x
  3. Step 3: Cross multiply
    780,141.78x = 1,076,616.97 × 440,610.03
  4. Step 4: Simplify right side
    780,141.78x = 474,368,234,348.68
  5. Step 5: Solve for x
    x = 474,368,234,348.68/780,141.78
  6. Step 6: Final answer
    x = 608,053.88

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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.