Home / 1,428,391.44-1,971,174.83-783,822.47

Finding the Fourth Proportional to 1,428,391.44, 1,971,174.83 and 783,822.47

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Solution

The fourth proportional to 1,428,391.44, 1,971,174.83 and 783,822.47 is: 1,081,672.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,391.44 : 1,971,174.83 = 783,822.47 : x
  2. Step 2: Convert to fraction form
    1,428,391.44/1,971,174.83 = 783,822.47/x
  3. Step 3: Cross multiply
    1,428,391.44x = 1,971,174.83 × 783,822.47
  4. Step 4: Simplify right side
    1,428,391.44x = 1,545,051,110,277.44
  5. Step 5: Solve for x
    x = 1,545,051,110,277.44/1,428,391.44
  6. Step 6: Final answer
    x = 1,081,672.06

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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.