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Finding the Fourth Proportional to 529,508.35, 730,727.13 and 287,790.94

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Solution

The fourth proportional to 529,508.35, 730,727.13 and 287,790.94 is: 397,154.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,508.35 : 730,727.13 = 287,790.94 : x
  2. Step 2: Convert to fraction form
    529,508.35/730,727.13 = 287,790.94/x
  3. Step 3: Cross multiply
    529,508.35x = 730,727.13 × 287,790.94
  4. Step 4: Simplify right side
    529,508.35x = 210,296,647,626.20
  5. Step 5: Solve for x
    x = 210,296,647,626.20/529,508.35
  6. Step 6: Final answer
    x = 397,154.54

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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.