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Finding the Fourth Proportional to 548,518.44, 757,025.55 and 306,814.44

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Solution

The fourth proportional to 548,518.44, 757,025.55 and 306,814.44 is: 423,443.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,518.44 : 757,025.55 = 306,814.44 : x
  2. Step 2: Convert to fraction form
    548,518.44/757,025.55 = 306,814.44/x
  3. Step 3: Cross multiply
    548,518.44x = 757,025.55 × 306,814.44
  4. Step 4: Simplify right side
    548,518.44x = 232,266,370,188.94
  5. Step 5: Solve for x
    x = 232,266,370,188.94/548,518.44
  6. Step 6: Final answer
    x = 423,443.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.