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Finding the Fourth Proportional to 529,536.36, 730,765.02 and 287,819.48

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Solution

The fourth proportional to 529,536.36, 730,765.02 and 287,819.48 is: 397,193.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,536.36 : 730,765.02 = 287,819.48 : x
  2. Step 2: Convert to fraction form
    529,536.36/730,765.02 = 287,819.48/x
  3. Step 3: Cross multiply
    529,536.36x = 730,765.02 × 287,819.48
  4. Step 4: Simplify right side
    529,536.36x = 210,328,408,058.59
  5. Step 5: Solve for x
    x = 210,328,408,058.59/529,536.36
  6. Step 6: Final answer
    x = 397,193.51

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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.