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Finding the Fourth Proportional to 495,686.80, 742,493.40 and 273,811.60

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Solution

The fourth proportional to 495,686.80, 742,493.40 and 273,811.60 is: 410,144.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,686.80 : 742,493.40 = 273,811.60 : x
  2. Step 2: Convert to fraction form
    495,686.80/742,493.40 = 273,811.60/x
  3. Step 3: Cross multiply
    495,686.80x = 742,493.40 × 273,811.60
  4. Step 4: Simplify right side
    495,686.80x = 203,303,305,843.44
  5. Step 5: Solve for x
    x = 203,303,305,843.44/495,686.80
  6. Step 6: Final answer
    x = 410,144.68

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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.