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Finding the Fourth Proportional to 628,086.61, 942,499.14 and 228,751.48

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Solution

The fourth proportional to 628,086.61, 942,499.14 and 228,751.48 is: 343,261.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,086.61 : 942,499.14 = 228,751.48 : x
  2. Step 2: Convert to fraction form
    628,086.61/942,499.14 = 228,751.48/x
  3. Step 3: Cross multiply
    628,086.61x = 942,499.14 × 228,751.48
  4. Step 4: Simplify right side
    628,086.61x = 215,598,073,173.73
  5. Step 5: Solve for x
    x = 215,598,073,173.73/628,086.61
  6. Step 6: Final answer
    x = 343,261.69

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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.