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Finding the Fourth Proportional to 529,483.92, 730,692.42 and 287,766.44

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Solution

The fourth proportional to 529,483.92, 730,692.42 and 287,766.44 is: 397,120.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,483.92 : 730,692.42 = 287,766.44 : x
  2. Step 2: Convert to fraction form
    529,483.92/730,692.42 = 287,766.44/x
  3. Step 3: Cross multiply
    529,483.92x = 730,692.42 × 287,766.44
  4. Step 4: Simplify right side
    529,483.92x = 210,268,756,438.39
  5. Step 5: Solve for x
    x = 210,268,756,438.39/529,483.92
  6. Step 6: Final answer
    x = 397,120.19

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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.