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Finding the Fourth Proportional to 607,310, 838,087.86 and 339,038

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Solution

The fourth proportional to 607,310, 838,087.86 and 339,038 is: 467,872.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,310 : 838,087.86 = 339,038 : x
  2. Step 2: Convert to fraction form
    607,310/838,087.86 = 339,038/x
  3. Step 3: Cross multiply
    607,310x = 838,087.86 × 339,038
  4. Step 4: Simplify right side
    607,310x = 284,143,631,878.68
  5. Step 5: Solve for x
    x = 284,143,631,878.68/607,310
  6. Step 6: Final answer
    x = 467,872.47

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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.