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Finding the Fourth Proportional to 544,021.60, 815,235.60 and 487,861.60

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Solution

The fourth proportional to 544,021.60, 815,235.60 and 487,861.60 is: 731,077.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,021.60 : 815,235.60 = 487,861.60 : x
  2. Step 2: Convert to fraction form
    544,021.60/815,235.60 = 487,861.60/x
  3. Step 3: Cross multiply
    544,021.60x = 815,235.60 × 487,861.60
  4. Step 4: Simplify right side
    544,021.60x = 397,722,144,192.96
  5. Step 5: Solve for x
    x = 397,722,144,192.96/544,021.60
  6. Step 6: Final answer
    x = 731,077.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.