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Finding the Fourth Proportional to 607,455, 838,287.90 and 339,183

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Solution

The fourth proportional to 607,455, 838,287.90 and 339,183 is: 468,072.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,455 : 838,287.90 = 339,183 : x
  2. Step 2: Convert to fraction form
    607,455/838,287.90 = 339,183/x
  3. Step 3: Cross multiply
    607,455x = 838,287.90 × 339,183
  4. Step 4: Simplify right side
    607,455x = 284,333,004,785.70
  5. Step 5: Solve for x
    x = 284,333,004,785.70/607,455
  6. Step 6: Final answer
    x = 468,072.54

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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.