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Finding the Fourth Proportional to 628,802.88, 942,883.88 and 308,976

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Solution

The fourth proportional to 628,802.88, 942,883.88 and 308,976 is: 463,306.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,802.88 : 942,883.88 = 308,976 : x
  2. Step 2: Convert to fraction form
    628,802.88/942,883.88 = 308,976/x
  3. Step 3: Cross multiply
    628,802.88x = 942,883.88 × 308,976
  4. Step 4: Simplify right side
    628,802.88x = 291,328,489,706.88
  5. Step 5: Solve for x
    x = 291,328,489,706.88/628,802.88
  6. Step 6: Final answer
    x = 463,306.54

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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.