Home / 2,059,224.40-3,089,128.20-639,132.40

Finding the Fourth Proportional to 2,059,224.40, 3,089,128.20 and 639,132.40

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Solution

The fourth proportional to 2,059,224.40, 3,089,128.20 and 639,132.40 is: 958,789.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,059,224.40 : 3,089,128.20 = 639,132.40 : x
  2. Step 2: Convert to fraction form
    2,059,224.40/3,089,128.20 = 639,132.40/x
  3. Step 3: Cross multiply
    2,059,224.40x = 3,089,128.20 × 639,132.40
  4. Step 4: Simplify right side
    2,059,224.40x = 1,974,361,920,373.68
  5. Step 5: Solve for x
    x = 1,974,361,920,373.68/2,059,224.40
  6. Step 6: Final answer
    x = 958,789.11

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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.