Home / 3,638,948.20-5,458,908.30-1,242,190.60

Finding the Fourth Proportional to 3,638,948.20, 5,458,908.30 and 1,242,190.60

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Solution

The fourth proportional to 3,638,948.20, 5,458,908.30 and 1,242,190.60 is: 1,863,451.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638,948.20 : 5,458,908.30 = 1,242,190.60 : x
  2. Step 2: Convert to fraction form
    3,638,948.20/5,458,908.30 = 1,242,190.60/x
  3. Step 3: Cross multiply
    3,638,948.20x = 5,458,908.30 × 1,242,190.60
  4. Step 4: Simplify right side
    3,638,948.20x = 6,781,004,576,521.98
  5. Step 5: Solve for x
    x = 6,781,004,576,521.98/3,638,948.20
  6. Step 6: Final answer
    x = 1,863,451.80

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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.