Home / 1,384,786.83-2,076,972.47-438,034.53

Finding the Fourth Proportional to 1,384,786.83, 2,076,972.47 and 438,034.53

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Solution

The fourth proportional to 1,384,786.83, 2,076,972.47 and 438,034.53 is: 656,986.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,786.83 : 2,076,972.47 = 438,034.53 : x
  2. Step 2: Convert to fraction form
    1,384,786.83/2,076,972.47 = 438,034.53/x
  3. Step 3: Cross multiply
    1,384,786.83x = 2,076,972.47 × 438,034.53
  4. Step 4: Simplify right side
    1,384,786.83x = 909,785,659,719.39
  5. Step 5: Solve for x
    x = 909,785,659,719.39/1,384,786.83
  6. Step 6: Final answer
    x = 656,986.07

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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.