Home / 414,334.87-621,321.17-209,043.27

Finding the Fourth Proportional to 414,334.87, 621,321.17 and 209,043.27

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Solution

The fourth proportional to 414,334.87, 621,321.17 and 209,043.27 is: 313,473.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,334.87 : 621,321.17 = 209,043.27 : x
  2. Step 2: Convert to fraction form
    414,334.87/621,321.17 = 209,043.27/x
  3. Step 3: Cross multiply
    414,334.87x = 621,321.17 × 209,043.27
  4. Step 4: Simplify right side
    414,334.87x = 129,883,008,051.81
  5. Step 5: Solve for x
    x = 129,883,008,051.81/414,334.87
  6. Step 6: Final answer
    x = 313,473.52

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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.