Home / 862,019.08-1,293,026.19-388,149.64

Finding the Fourth Proportional to 862,019.08, 1,293,026.19 and 388,149.64

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Solution

The fourth proportional to 862,019.08, 1,293,026.19 and 388,149.64 is: 582,223.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,019.08 : 1,293,026.19 = 388,149.64 : x
  2. Step 2: Convert to fraction form
    862,019.08/1,293,026.19 = 388,149.64/x
  3. Step 3: Cross multiply
    862,019.08x = 1,293,026.19 × 388,149.64
  4. Step 4: Simplify right side
    862,019.08x = 501,887,650,159.07
  5. Step 5: Solve for x
    x = 501,887,650,159.07/862,019.08
  6. Step 6: Final answer
    x = 582,223.37

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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.