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Finding the Fourth Proportional to 605,149.79, 907,866.83 and 339,093.95

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Solution

The fourth proportional to 605,149.79, 907,866.83 and 339,093.95 is: 508,720.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,149.79 : 907,866.83 = 339,093.95 : x
  2. Step 2: Convert to fraction form
    605,149.79/907,866.83 = 339,093.95/x
  3. Step 3: Cross multiply
    605,149.79x = 907,866.83 × 339,093.95
  4. Step 4: Simplify right side
    605,149.79x = 307,852,145,767.08
  5. Step 5: Solve for x
    x = 307,852,145,767.08/605,149.79
  6. Step 6: Final answer
    x = 508,720.57

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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.