Home / 1,394,161.90-2,091,242.85-447,628.30

Finding the Fourth Proportional to 1,394,161.90, 2,091,242.85 and 447,628.30

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Solution

The fourth proportional to 1,394,161.90, 2,091,242.85 and 447,628.30 is: 671,442.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,161.90 : 2,091,242.85 = 447,628.30 : x
  2. Step 2: Convert to fraction form
    1,394,161.90/2,091,242.85 = 447,628.30/x
  3. Step 3: Cross multiply
    1,394,161.90x = 2,091,242.85 × 447,628.30
  4. Step 4: Simplify right side
    1,394,161.90x = 936,099,481,832.66
  5. Step 5: Solve for x
    x = 936,099,481,832.66/1,394,161.90
  6. Step 6: Final answer
    x = 671,442.45

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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.