Home / 420,313.15-631,104.41-335,822.36

Finding the Fourth Proportional to 420,313.15, 631,104.41 and 335,822.36

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Solution

The fourth proportional to 420,313.15, 631,104.41 and 335,822.36 is: 504,240.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,313.15 : 631,104.41 = 335,822.36 : x
  2. Step 2: Convert to fraction form
    420,313.15/631,104.41 = 335,822.36/x
  3. Step 3: Cross multiply
    420,313.15x = 631,104.41 × 335,822.36
  4. Step 4: Simplify right side
    420,313.15x = 211,938,970,056.64
  5. Step 5: Solve for x
    x = 211,938,970,056.64/420,313.15
  6. Step 6: Final answer
    x = 504,240.63

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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.