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Finding the Fourth Proportional to 727,978.80, 1,092,000.60 and 248,199.60

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Solution

The fourth proportional to 727,978.80, 1,092,000.60 and 248,199.60 is: 372,310.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,978.80 : 1,092,000.60 = 248,199.60 : x
  2. Step 2: Convert to fraction form
    727,978.80/1,092,000.60 = 248,199.60/x
  3. Step 3: Cross multiply
    727,978.80x = 1,092,000.60 × 248,199.60
  4. Step 4: Simplify right side
    727,978.80x = 271,034,112,119.76
  5. Step 5: Solve for x
    x = 271,034,112,119.76/727,978.80
  6. Step 6: Final answer
    x = 372,310.45

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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.