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Finding the Fourth Proportional to 660,941.76, 991,410.60 and 187,627.44

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Solution

The fourth proportional to 660,941.76, 991,410.60 and 187,627.44 is: 281,440.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,941.76 : 991,410.60 = 187,627.44 : x
  2. Step 2: Convert to fraction form
    660,941.76/991,410.60 = 187,627.44/x
  3. Step 3: Cross multiply
    660,941.76x = 991,410.60 × 187,627.44
  4. Step 4: Simplify right side
    660,941.76x = 186,015,832,866.86
  5. Step 5: Solve for x
    x = 186,015,832,866.86/660,941.76
  6. Step 6: Final answer
    x = 281,440.58

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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.