Home / 862,021.08-1,293,029.19-388,151.64

Finding the Fourth Proportional to 862,021.08, 1,293,029.19 and 388,151.64

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Solution

The fourth proportional to 862,021.08, 1,293,029.19 and 388,151.64 is: 582,226.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,021.08 : 1,293,029.19 = 388,151.64 : x
  2. Step 2: Convert to fraction form
    862,021.08/1,293,029.19 = 388,151.64/x
  3. Step 3: Cross multiply
    862,021.08x = 1,293,029.19 × 388,151.64
  4. Step 4: Simplify right side
    862,021.08x = 501,891,400,666.37
  5. Step 5: Solve for x
    x = 501,891,400,666.37/862,021.08
  6. Step 6: Final answer
    x = 582,226.37

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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.