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Finding the Fourth Proportional to 607,617.38, 838,512 and 339,345.38

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Solution

The fourth proportional to 607,617.38, 838,512 and 339,345.38 is: 468,296.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,617.38 : 838,512 = 339,345.38 : x
  2. Step 2: Convert to fraction form
    607,617.38/838,512 = 339,345.38/x
  3. Step 3: Cross multiply
    607,617.38x = 838,512 × 339,345.38
  4. Step 4: Simplify right side
    607,617.38x = 284,545,169,082
  5. Step 5: Solve for x
    x = 284,545,169,082/607,617.38
  6. Step 6: Final answer
    x = 468,296.63

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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.