Home / 1,890,921.09-2,836,406.34-628,748.85

Finding the Fourth Proportional to 1,890,921.09, 2,836,406.34 and 628,748.85

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Solution

The fourth proportional to 1,890,921.09, 2,836,406.34 and 628,748.85 is: 943,131.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,921.09 : 2,836,406.34 = 628,748.85 : x
  2. Step 2: Convert to fraction form
    1,890,921.09/2,836,406.34 = 628,748.85/x
  3. Step 3: Cross multiply
    1,890,921.09x = 2,836,406.34 × 628,748.85
  4. Step 4: Simplify right side
    1,890,921.09x = 1,783,387,224,407.71
  5. Step 5: Solve for x
    x = 1,783,387,224,407.71/1,890,921.09
  6. Step 6: Final answer
    x = 943,131.49

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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.