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Finding the Fourth Proportional to 495,941.40, 743,912.10 and 259,356.60

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Solution

The fourth proportional to 495,941.40, 743,912.10 and 259,356.60 is: 389,034.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,941.40 : 743,912.10 = 259,356.60 : x
  2. Step 2: Convert to fraction form
    495,941.40/743,912.10 = 259,356.60/x
  3. Step 3: Cross multiply
    495,941.40x = 743,912.10 × 259,356.60
  4. Step 4: Simplify right side
    495,941.40x = 192,938,512,954.86
  5. Step 5: Solve for x
    x = 192,938,512,954.86/495,941.40
  6. Step 6: Final answer
    x = 389,034.90

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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.