Home / 481,426.20-721,556.10-214,903.80

Finding the Fourth Proportional to 481,426.20, 721,556.10 and 214,903.80

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Solution

The fourth proportional to 481,426.20, 721,556.10 and 214,903.80 is: 322,095.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,426.20 : 721,556.10 = 214,903.80 : x
  2. Step 2: Convert to fraction form
    481,426.20/721,556.10 = 214,903.80/x
  3. Step 3: Cross multiply
    481,426.20x = 721,556.10 × 214,903.80
  4. Step 4: Simplify right side
    481,426.20x = 155,065,147,803.18
  5. Step 5: Solve for x
    x = 155,065,147,803.18/481,426.20
  6. Step 6: Final answer
    x = 322,095.37

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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.