Home / 1,147,412.59-1,721,331.73-378,963.51

Finding the Fourth Proportional to 1,147,412.59, 1,721,331.73 and 378,963.51

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Solution

The fourth proportional to 1,147,412.59, 1,721,331.73 and 378,963.51 is: 568,515.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,412.59 : 1,721,331.73 = 378,963.51 : x
  2. Step 2: Convert to fraction form
    1,147,412.59/1,721,331.73 = 378,963.51/x
  3. Step 3: Cross multiply
    1,147,412.59x = 1,721,331.73 × 378,963.51
  4. Step 4: Simplify right side
    1,147,412.59x = 652,321,919,042.21
  5. Step 5: Solve for x
    x = 652,321,919,042.21/1,147,412.59
  6. Step 6: Final answer
    x = 568,515.57

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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.