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Finding the Fourth Proportional to 768,235.59, 1,151,782.74 and 368,495.73

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Solution

The fourth proportional to 768,235.59, 1,151,782.74 and 368,495.73 is: 552,469.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,235.59 : 1,151,782.74 = 368,495.73 : x
  2. Step 2: Convert to fraction form
    768,235.59/1,151,782.74 = 368,495.73/x
  3. Step 3: Cross multiply
    768,235.59x = 1,151,782.74 × 368,495.73
  4. Step 4: Simplify right side
    768,235.59x = 424,427,021,577.70
  5. Step 5: Solve for x
    x = 424,427,021,577.70/768,235.59
  6. Step 6: Final answer
    x = 552,469.88

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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.