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Finding the Fourth Proportional to 605,223.09, 907,366.86 and 305,549.42

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Solution

The fourth proportional to 605,223.09, 907,366.86 and 305,549.42 is: 458,087.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,223.09 : 907,366.86 = 305,549.42 : x
  2. Step 2: Convert to fraction form
    605,223.09/907,366.86 = 305,549.42/x
  3. Step 3: Cross multiply
    605,223.09x = 907,366.86 × 305,549.42
  4. Step 4: Simplify right side
    605,223.09x = 277,245,413,263.39
  5. Step 5: Solve for x
    x = 277,245,413,263.39/605,223.09
  6. Step 6: Final answer
    x = 458,087.96

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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.