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Finding the Fourth Proportional to 559,383.52, 771,942.32 and 304,729.28

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Solution

The fourth proportional to 559,383.52, 771,942.32 and 304,729.28 is: 420,522.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,383.52 : 771,942.32 = 304,729.28 : x
  2. Step 2: Convert to fraction form
    559,383.52/771,942.32 = 304,729.28/x
  3. Step 3: Cross multiply
    559,383.52x = 771,942.32 × 304,729.28
  4. Step 4: Simplify right side
    559,383.52x = 235,233,427,375.13
  5. Step 5: Solve for x
    x = 235,233,427,375.13/559,383.52
  6. Step 6: Final answer
    x = 420,522.63

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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.