Home / 529,529.35-730,754.94-287,811.86

Finding the Fourth Proportional to 529,529.35, 730,754.94 and 287,811.86

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Solution

The fourth proportional to 529,529.35, 730,754.94 and 287,811.86 is: 397,182.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,529.35 : 730,754.94 = 287,811.86 : x
  2. Step 2: Convert to fraction form
    529,529.35/730,754.94 = 287,811.86/x
  3. Step 3: Cross multiply
    529,529.35x = 730,754.94 × 287,811.86
  4. Step 4: Simplify right side
    529,529.35x = 210,319,938,485.59
  5. Step 5: Solve for x
    x = 210,319,938,485.59/529,529.35
  6. Step 6: Final answer
    x = 397,182.78

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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.