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Finding the Fourth Proportional to 550,765.40, 827,897.70 and 519,272.60

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Solution

The fourth proportional to 550,765.40, 827,897.70 and 519,272.60 is: 780,558.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,765.40 : 827,897.70 = 519,272.60 : x
  2. Step 2: Convert to fraction form
    550,765.40/827,897.70 = 519,272.60/x
  3. Step 3: Cross multiply
    550,765.40x = 827,897.70 × 519,272.60
  4. Step 4: Simplify right side
    550,765.40x = 429,904,591,213.02
  5. Step 5: Solve for x
    x = 429,904,591,213.02/550,765.40
  6. Step 6: Final answer
    x = 780,558.46

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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.