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Finding the Fourth Proportional to 481,982.40, 722,282.40 and 354,628.80

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Solution

The fourth proportional to 481,982.40, 722,282.40 and 354,628.80 is: 531,434.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,982.40 : 722,282.40 = 354,628.80 : x
  2. Step 2: Convert to fraction form
    481,982.40/722,282.40 = 354,628.80/x
  3. Step 3: Cross multiply
    481,982.40x = 722,282.40 × 354,628.80
  4. Step 4: Simplify right side
    481,982.40x = 256,142,140,773.12
  5. Step 5: Solve for x
    x = 256,142,140,773.12/481,982.40
  6. Step 6: Final answer
    x = 531,434.63

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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.