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Finding the Fourth Proportional to 529,318.26, 730,450.35 and 287,604.54

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Solution

The fourth proportional to 529,318.26, 730,450.35 and 287,604.54 is: 396,889.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,318.26 : 730,450.35 = 287,604.54 : x
  2. Step 2: Convert to fraction form
    529,318.26/730,450.35 = 287,604.54/x
  3. Step 3: Cross multiply
    529,318.26x = 730,450.35 × 287,604.54
  4. Step 4: Simplify right side
    529,318.26x = 210,080,836,904.59
  5. Step 5: Solve for x
    x = 210,080,836,904.59/529,318.26
  6. Step 6: Final answer
    x = 396,889.46

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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.