Home / 481,941.47-721,763.08-279,109.01

Finding the Fourth Proportional to 481,941.47, 721,763.08 and 279,109.01

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Solution

The fourth proportional to 481,941.47, 721,763.08 and 279,109.01 is: 417,998.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,941.47 : 721,763.08 = 279,109.01 : x
  2. Step 2: Convert to fraction form
    481,941.47/721,763.08 = 279,109.01/x
  3. Step 3: Cross multiply
    481,941.47x = 721,763.08 × 279,109.01
  4. Step 4: Simplify right side
    481,941.47x = 201,450,579,819.99
  5. Step 5: Solve for x
    x = 201,450,579,819.99/481,941.47
  6. Step 6: Final answer
    x = 417,998.02

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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.