Home / 529,672.03-730,961.82-287,970.86

Finding the Fourth Proportional to 529,672.03, 730,961.82 and 287,970.86

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Solution

The fourth proportional to 529,672.03, 730,961.82 and 287,970.86 is: 397,407.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,672.03 : 730,961.82 = 287,970.86 : x
  2. Step 2: Convert to fraction form
    529,672.03/730,961.82 = 287,970.86/x
  3. Step 3: Cross multiply
    529,672.03x = 730,961.82 × 287,970.86
  4. Step 4: Simplify right side
    529,672.03x = 210,495,705,759.97
  5. Step 5: Solve for x
    x = 210,495,705,759.97/529,672.03
  6. Step 6: Final answer
    x = 397,407.63

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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.