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Finding the Fourth Proportional to 505,280.70, 757,921.05 and 303,201.90

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Solution

The fourth proportional to 505,280.70, 757,921.05 and 303,201.90 is: 454,802.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,280.70 : 757,921.05 = 303,201.90 : x
  2. Step 2: Convert to fraction form
    505,280.70/757,921.05 = 303,201.90/x
  3. Step 3: Cross multiply
    505,280.70x = 757,921.05 × 303,201.90
  4. Step 4: Simplify right side
    505,280.70x = 229,803,102,410.00
  5. Step 5: Solve for x
    x = 229,803,102,410.00/505,280.70
  6. Step 6: Final answer
    x = 454,802.85

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Similar ratio
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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.