Home / 1,428,112.41-2,142,175.95-481,491.33

Finding the Fourth Proportional to 1,428,112.41, 2,142,175.95 and 481,491.33

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Solution

The fourth proportional to 1,428,112.41, 2,142,175.95 and 481,491.33 is: 722,239.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,112.41 : 2,142,175.95 = 481,491.33 : x
  2. Step 2: Convert to fraction form
    1,428,112.41/2,142,175.95 = 481,491.33/x
  3. Step 3: Cross multiply
    1,428,112.41x = 2,142,175.95 × 481,491.33
  4. Step 4: Simplify right side
    1,428,112.41x = 1,031,439,147,259.51
  5. Step 5: Solve for x
    x = 1,031,439,147,259.51/1,428,112.41
  6. Step 6: Final answer
    x = 722,239.47

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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.