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Finding the Fourth Proportional to 529,537.52, 730,766.22 and 287,820.02

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Solution

The fourth proportional to 529,537.52, 730,766.22 and 287,820.02 is: 397,194.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,537.52 : 730,766.22 = 287,820.02 : x
  2. Step 2: Convert to fraction form
    529,537.52/730,766.22 = 287,820.02/x
  3. Step 3: Cross multiply
    529,537.52x = 730,766.22 × 287,820.02
  4. Step 4: Simplify right side
    529,537.52x = 210,329,148,055.72
  5. Step 5: Solve for x
    x = 210,329,148,055.72/529,537.52
  6. Step 6: Final answer
    x = 397,194.04

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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.