Home / 1,292,817.45-1,939,220.88-394,256.55

Finding the Fourth Proportional to 1,292,817.45, 1,939,220.88 and 394,256.55

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Solution

The fourth proportional to 1,292,817.45, 1,939,220.88 and 394,256.55 is: 591,383.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,817.45 : 1,939,220.88 = 394,256.55 : x
  2. Step 2: Convert to fraction form
    1,292,817.45/1,939,220.88 = 394,256.55/x
  3. Step 3: Cross multiply
    1,292,817.45x = 1,939,220.88 × 394,256.55
  4. Step 4: Simplify right side
    1,292,817.45x = 764,550,533,836.76
  5. Step 5: Solve for x
    x = 764,550,533,836.76/1,292,817.45
  6. Step 6: Final answer
    x = 591,383.21

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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.