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Finding the Fourth Proportional to 495,399.60, 743,123.70 and 259,203.60

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Solution

The fourth proportional to 495,399.60, 743,123.70 and 259,203.60 is: 388,818.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,399.60 : 743,123.70 = 259,203.60 : x
  2. Step 2: Convert to fraction form
    495,399.60/743,123.70 = 259,203.60/x
  3. Step 3: Cross multiply
    495,399.60x = 743,123.70 × 259,203.60
  4. Step 4: Simplify right side
    495,399.60x = 192,620,338,285.32
  5. Step 5: Solve for x
    x = 192,620,338,285.32/495,399.60
  6. Step 6: Final answer
    x = 388,818.11

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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.