Home / 1,428,230.51-1,970,958.12-816,396.54

Finding the Fourth Proportional to 1,428,230.51, 1,970,958.12 and 816,396.54

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Solution

The fourth proportional to 1,428,230.51, 1,970,958.12 and 816,396.54 is: 1,126,627.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,230.51 : 1,970,958.12 = 816,396.54 : x
  2. Step 2: Convert to fraction form
    1,428,230.51/1,970,958.12 = 816,396.54/x
  3. Step 3: Cross multiply
    1,428,230.51x = 1,970,958.12 × 816,396.54
  4. Step 4: Simplify right side
    1,428,230.51x = 1,609,083,379,200.32
  5. Step 5: Solve for x
    x = 1,609,083,379,200.32/1,428,230.51
  6. Step 6: Final answer
    x = 1,126,627.23

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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.