Home / 2,120,341.19-3,180,497.20-858,150.59

Finding the Fourth Proportional to 2,120,341.19, 3,180,497.20 and 858,150.59

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Solution

The fourth proportional to 2,120,341.19, 3,180,497.20 and 858,150.59 is: 1,287,219.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,341.19 : 3,180,497.20 = 858,150.59 : x
  2. Step 2: Convert to fraction form
    2,120,341.19/3,180,497.20 = 858,150.59/x
  3. Step 3: Cross multiply
    2,120,341.19x = 3,180,497.20 × 858,150.59
  4. Step 4: Simplify right side
    2,120,341.19x = 2,729,345,530,625.49
  5. Step 5: Solve for x
    x = 2,729,345,530,625.49/2,120,341.19
  6. Step 6: Final answer
    x = 1,287,219.98

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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.