Home / 3,938,874.51-5,908,311.09-1,245,090.72

Finding the Fourth Proportional to 3,938,874.51, 5,908,311.09 and 1,245,090.72

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Solution

The fourth proportional to 3,938,874.51, 5,908,311.09 and 1,245,090.72 is: 1,867,635.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,874.51 : 5,908,311.09 = 1,245,090.72 : x
  2. Step 2: Convert to fraction form
    3,938,874.51/5,908,311.09 = 1,245,090.72/x
  3. Step 3: Cross multiply
    3,938,874.51x = 5,908,311.09 × 1,245,090.72
  4. Step 4: Simplify right side
    3,938,874.51x = 7,356,383,309,032.08
  5. Step 5: Solve for x
    x = 7,356,383,309,032.08/3,938,874.51
  6. Step 6: Final answer
    x = 1,867,635.87

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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.