Home / 414,419.47-621,629.46-130,108.77

Finding the Fourth Proportional to 414,419.47, 621,629.46 and 130,108.77

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Solution

The fourth proportional to 414,419.47, 621,629.46 and 130,108.77 is: 195,163.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,419.47 : 621,629.46 = 130,108.77 : x
  2. Step 2: Convert to fraction form
    414,419.47/621,629.46 = 130,108.77/x
  3. Step 3: Cross multiply
    414,419.47x = 621,629.46 × 130,108.77
  4. Step 4: Simplify right side
    414,419.47x = 80,879,444,436.36
  5. Step 5: Solve for x
    x = 80,879,444,436.36/414,419.47
  6. Step 6: Final answer
    x = 195,163.24

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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.