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Finding the Fourth Proportional to 529,541.73, 730,772.46 and 287,824.86

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Solution

The fourth proportional to 529,541.73, 730,772.46 and 287,824.86 is: 397,200.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,541.73 : 730,772.46 = 287,824.86 : x
  2. Step 2: Convert to fraction form
    529,541.73/730,772.46 = 287,824.86/x
  3. Step 3: Cross multiply
    529,541.73x = 730,772.46 × 287,824.86
  4. Step 4: Simplify right side
    529,541.73x = 210,334,480,991.36
  5. Step 5: Solve for x
    x = 210,334,480,991.36/529,541.73
  6. Step 6: Final answer
    x = 397,200.96

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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.