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Finding the Fourth Proportional to 454,980.60, 683,783.10 and 397,243.80

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Solution

The fourth proportional to 454,980.60, 683,783.10 and 397,243.80 is: 597,011.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,980.60 : 683,783.10 = 397,243.80 : x
  2. Step 2: Convert to fraction form
    454,980.60/683,783.10 = 397,243.80/x
  3. Step 3: Cross multiply
    454,980.60x = 683,783.10 × 397,243.80
  4. Step 4: Simplify right side
    454,980.60x = 271,628,597,019.78
  5. Step 5: Solve for x
    x = 271,628,597,019.78/454,980.60
  6. Step 6: Final answer
    x = 597,011.38

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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.