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Finding the Fourth Proportional to 529,074.00, 730,124.21 and 287,360.61

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Solution

The fourth proportional to 529,074.00, 730,124.21 and 287,360.61 is: 396,558.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,074.00 : 730,124.21 = 287,360.61 : x
  2. Step 2: Convert to fraction form
    529,074.00/730,124.21 = 287,360.61/x
  3. Step 3: Cross multiply
    529,074.00x = 730,124.21 × 287,360.61
  4. Step 4: Simplify right side
    529,074.00x = 209,808,938,361.37
  5. Step 5: Solve for x
    x = 209,808,938,361.37/529,074.00
  6. Step 6: Final answer
    x = 396,558.78

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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.