Home / 1,098,958.71-1,516,610.06-639,999.22

Finding the Fourth Proportional to 1,098,958.71, 1,516,610.06 and 639,999.22

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Solution

The fourth proportional to 1,098,958.71, 1,516,610.06 and 639,999.22 is: 883,226.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,958.71 : 1,516,610.06 = 639,999.22 : x
  2. Step 2: Convert to fraction form
    1,098,958.71/1,516,610.06 = 639,999.22/x
  3. Step 3: Cross multiply
    1,098,958.71x = 1,516,610.06 × 639,999.22
  4. Step 4: Simplify right side
    1,098,958.71x = 970,629,247,630.81
  5. Step 5: Solve for x
    x = 970,629,247,630.81/1,098,958.71
  6. Step 6: Final answer
    x = 883,226.31

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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.