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Finding the Fourth Proportional to 628,799.88, 942,879.38 and 308,973

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Solution

The fourth proportional to 628,799.88, 942,879.38 and 308,973 is: 463,302.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,799.88 : 942,879.38 = 308,973 : x
  2. Step 2: Convert to fraction form
    628,799.88/942,879.38 = 308,973/x
  3. Step 3: Cross multiply
    628,799.88x = 942,879.38 × 308,973
  4. Step 4: Simplify right side
    628,799.88x = 291,324,270,676.74
  5. Step 5: Solve for x
    x = 291,324,270,676.74/628,799.88
  6. Step 6: Final answer
    x = 463,302.05

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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.