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Finding the Fourth Proportional to 599,986, 900,026.80 and 200,629.28

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Solution

The fourth proportional to 599,986, 900,026.80 and 200,629.28 is: 300,959.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,986 : 900,026.80 = 200,629.28 : x
  2. Step 2: Convert to fraction form
    599,986/900,026.80 = 200,629.28/x
  3. Step 3: Cross multiply
    599,986x = 900,026.80 × 200,629.28
  4. Step 4: Simplify right side
    599,986x = 180,571,728,864.70
  5. Step 5: Solve for x
    x = 180,571,728,864.70/599,986
  6. Step 6: Final answer
    x = 300,959.90

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1.5x scale

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.