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Finding the Fourth Proportional to 599,732.20, 899,745.80 and 422,585.20

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Solution

The fourth proportional to 599,732.20, 899,745.80 and 422,585.20 is: 633,981.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,732.20 : 899,745.80 = 422,585.20 : x
  2. Step 2: Convert to fraction form
    599,732.20/899,745.80 = 422,585.20/x
  3. Step 3: Cross multiply
    599,732.20x = 899,745.80 × 422,585.20
  4. Step 4: Simplify right side
    599,732.20x = 380,219,258,842.16
  5. Step 5: Solve for x
    x = 380,219,258,842.16/599,732.20
  6. Step 6: Final answer
    x = 633,981.73

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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.