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Finding the Fourth Proportional to 489,004.56, 733,500.90 and 134,018.28

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Solution

The fourth proportional to 489,004.56, 733,500.90 and 134,018.28 is: 201,025.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,004.56 : 733,500.90 = 134,018.28 : x
  2. Step 2: Convert to fraction form
    489,004.56/733,500.90 = 134,018.28/x
  3. Step 3: Cross multiply
    489,004.56x = 733,500.90 × 134,018.28
  4. Step 4: Simplify right side
    489,004.56x = 98,302,528,996.45
  5. Step 5: Solve for x
    x = 98,302,528,996.45/489,004.56
  6. Step 6: Final answer
    x = 201,025.79

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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.