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Finding the Fourth Proportional to 599,990, 900,032.80 and 200,633.28

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Solution

The fourth proportional to 599,990, 900,032.80 and 200,633.28 is: 300,965.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,990 : 900,032.80 = 200,633.28 : x
  2. Step 2: Convert to fraction form
    599,990/900,032.80 = 200,633.28/x
  3. Step 3: Cross multiply
    599,990x = 900,032.80 × 200,633.28
  4. Step 4: Simplify right side
    599,990x = 180,576,532,771.58
  5. Step 5: Solve for x
    x = 180,576,532,771.58/599,990
  6. Step 6: Final answer
    x = 300,965.90

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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.