Home / 414,622.09-621,908.53-243,939.80

Finding the Fourth Proportional to 414,622.09, 621,908.53 and 243,939.80

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Solution

The fourth proportional to 414,622.09, 621,908.53 and 243,939.80 is: 365,895.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,622.09 : 621,908.53 = 243,939.80 : x
  2. Step 2: Convert to fraction form
    414,622.09/621,908.53 = 243,939.80/x
  3. Step 3: Cross multiply
    414,622.09x = 621,908.53 × 243,939.80
  4. Step 4: Simplify right side
    414,622.09x = 151,708,244,743.58
  5. Step 5: Solve for x
    x = 151,708,244,743.58/414,622.09
  6. Step 6: Final answer
    x = 365,895.23

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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.