Home / 481,985.40-722,286.90-354,631.80

Finding the Fourth Proportional to 481,985.40, 722,286.90 and 354,631.80

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Solution

The fourth proportional to 481,985.40, 722,286.90 and 354,631.80 is: 531,439.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,985.40 : 722,286.90 = 354,631.80 : x
  2. Step 2: Convert to fraction form
    481,985.40/722,286.90 = 354,631.80/x
  3. Step 3: Cross multiply
    481,985.40x = 722,286.90 × 354,631.80
  4. Step 4: Simplify right side
    481,985.40x = 256,145,903,463.42
  5. Step 5: Solve for x
    x = 256,145,903,463.42/481,985.40
  6. Step 6: Final answer
    x = 531,439.13

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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.