Home / 3,315,879.75-4,973,819.21-919,724.39

Finding the Fourth Proportional to 3,315,879.75, 4,973,819.21 and 919,724.39

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Solution

The fourth proportional to 3,315,879.75, 4,973,819.21 and 919,724.39 is: 1,379,586.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315,879.75 : 4,973,819.21 = 919,724.39 : x
  2. Step 2: Convert to fraction form
    3,315,879.75/4,973,819.21 = 919,724.39/x
  3. Step 3: Cross multiply
    3,315,879.75x = 4,973,819.21 × 919,724.39
  4. Step 4: Simplify right side
    3,315,879.75x = 4,574,542,816,317.75
  5. Step 5: Solve for x
    x = 4,574,542,816,317.75/3,315,879.75
  6. Step 6: Final answer
    x = 1,379,586.46

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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.