Home / 439,121.28-605,979.48-248,130.54

Finding the Fourth Proportional to 439,121.28, 605,979.48 and 248,130.54

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Solution

The fourth proportional to 439,121.28, 605,979.48 and 248,130.54 is: 342,415.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,121.28 : 605,979.48 = 248,130.54 : x
  2. Step 2: Convert to fraction form
    439,121.28/605,979.48 = 248,130.54/x
  3. Step 3: Cross multiply
    439,121.28x = 605,979.48 × 248,130.54
  4. Step 4: Simplify right side
    439,121.28x = 150,362,015,601.32
  5. Step 5: Solve for x
    x = 150,362,015,601.32/439,121.28
  6. Step 6: Final answer
    x = 342,415.69

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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.