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Finding the Fourth Proportional to 529,493.90, 730,706.37 and 287,777.04

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Solution

The fourth proportional to 529,493.90, 730,706.37 and 287,777.04 is: 397,134.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,493.90 : 730,706.37 = 287,777.04 : x
  2. Step 2: Convert to fraction form
    529,493.90/730,706.37 = 287,777.04/x
  3. Step 3: Cross multiply
    529,493.90x = 730,706.37 × 287,777.04
  4. Step 4: Simplify right side
    529,493.90x = 210,280,512,448.43
  5. Step 5: Solve for x
    x = 210,280,512,448.43/529,493.90
  6. Step 6: Final answer
    x = 397,134.91

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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.