Home / 1,970,143.62-2,955,383.10-621,945.60

Finding the Fourth Proportional to 1,970,143.62, 2,955,383.10 and 621,945.60

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Solution

The fourth proportional to 1,970,143.62, 2,955,383.10 and 621,945.60 is: 932,971.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970,143.62 : 2,955,383.10 = 621,945.60 : x
  2. Step 2: Convert to fraction form
    1,970,143.62/2,955,383.10 = 621,945.60/x
  3. Step 3: Cross multiply
    1,970,143.62x = 2,955,383.10 × 621,945.60
  4. Step 4: Simplify right side
    1,970,143.62x = 1,838,087,515,359.36
  5. Step 5: Solve for x
    x = 1,838,087,515,359.36/1,970,143.62
  6. Step 6: Final answer
    x = 932,971.33

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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.