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Finding the Fourth Proportional to 478,749.24, 660,431.16 and 365,375.16

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Solution

The fourth proportional to 478,749.24, 660,431.16 and 365,375.16 is: 504,032.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,749.24 : 660,431.16 = 365,375.16 : x
  2. Step 2: Convert to fraction form
    478,749.24/660,431.16 = 365,375.16/x
  3. Step 3: Cross multiply
    478,749.24x = 660,431.16 × 365,375.16
  4. Step 4: Simplify right side
    478,749.24x = 241,305,140,753.99
  5. Step 5: Solve for x
    x = 241,305,140,753.99/478,749.24
  6. Step 6: Final answer
    x = 504,032.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.