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Finding the Fourth Proportional to 604,958.94, 907,999.74 and 305,649.78

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Solution

The fourth proportional to 604,958.94, 907,999.74 and 305,649.78 is: 458,758.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,958.94 : 907,999.74 = 305,649.78 : x
  2. Step 2: Convert to fraction form
    604,958.94/907,999.74 = 305,649.78/x
  3. Step 3: Cross multiply
    604,958.94x = 907,999.74 × 305,649.78
  4. Step 4: Simplify right side
    604,958.94x = 277,529,920,771.06
  5. Step 5: Solve for x
    x = 277,529,920,771.06/604,958.94
  6. Step 6: Final answer
    x = 458,758.28

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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.