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Finding the Fourth Proportional to 529,617.44, 730,694.16 and 300,156.71

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Solution

The fourth proportional to 529,617.44, 730,694.16 and 300,156.71 is: 414,115.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,617.44 : 730,694.16 = 300,156.71 : x
  2. Step 2: Convert to fraction form
    529,617.44/730,694.16 = 300,156.71/x
  3. Step 3: Cross multiply
    529,617.44x = 730,694.16 × 300,156.71
  4. Step 4: Simplify right side
    529,617.44x = 219,322,751,428.34
  5. Step 5: Solve for x
    x = 219,322,751,428.34/529,617.44
  6. Step 6: Final answer
    x = 414,115.42

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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.