Home / 3,121,208.20-4,678,313.10-1,323,785.80

Finding the Fourth Proportional to 3,121,208.20, 4,678,313.10 and 1,323,785.80

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Solution

The fourth proportional to 3,121,208.20, 4,678,313.10 and 1,323,785.80 is: 1,984,194.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,208.20 : 4,678,313.10 = 1,323,785.80 : x
  2. Step 2: Convert to fraction form
    3,121,208.20/4,678,313.10 = 1,323,785.80/x
  3. Step 3: Cross multiply
    3,121,208.20x = 4,678,313.10 × 1,323,785.80
  4. Step 4: Simplify right side
    3,121,208.20x = 6,193,084,449,733.98
  5. Step 5: Solve for x
    x = 6,193,084,449,733.98/3,121,208.20
  6. Step 6: Final answer
    x = 1,984,194.60

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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.