Home / 479,679.48-719,393.85-142,629.36

Finding the Fourth Proportional to 479,679.48, 719,393.85 and 142,629.36

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Solution

The fourth proportional to 479,679.48, 719,393.85 and 142,629.36 is: 213,906.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,679.48 : 719,393.85 = 142,629.36 : x
  2. Step 2: Convert to fraction form
    479,679.48/719,393.85 = 142,629.36/x
  3. Step 3: Cross multiply
    479,679.48x = 719,393.85 × 142,629.36
  4. Step 4: Simplify right side
    479,679.48x = 102,606,684,413.44
  5. Step 5: Solve for x
    x = 102,606,684,413.44/479,679.48
  6. Step 6: Final answer
    x = 213,906.76

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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.