Home / 448,078.75-618,577.18-303,647.56

Finding the Fourth Proportional to 448,078.75, 618,577.18 and 303,647.56

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Solution

The fourth proportional to 448,078.75, 618,577.18 and 303,647.56 is: 419,188.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,078.75 : 618,577.18 = 303,647.56 : x
  2. Step 2: Convert to fraction form
    448,078.75/618,577.18 = 303,647.56/x
  3. Step 3: Cross multiply
    448,078.75x = 618,577.18 × 303,647.56
  4. Step 4: Simplify right side
    448,078.75x = 187,829,449,073.12
  5. Step 5: Solve for x
    x = 187,829,449,073.12/448,078.75
  6. Step 6: Final answer
    x = 419,188.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.