Home / 743,614.22-1,115,222.07-322,790.06

Finding the Fourth Proportional to 743,614.22, 1,115,222.07 and 322,790.06

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Solution

The fourth proportional to 743,614.22, 1,115,222.07 and 322,790.06 is: 484,098.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,614.22 : 1,115,222.07 = 322,790.06 : x
  2. Step 2: Convert to fraction form
    743,614.22/1,115,222.07 = 322,790.06/x
  3. Step 3: Cross multiply
    743,614.22x = 1,115,222.07 × 322,790.06
  4. Step 4: Simplify right side
    743,614.22x = 359,982,602,887.14
  5. Step 5: Solve for x
    x = 359,982,602,887.14/743,614.22
  6. Step 6: Final answer
    x = 484,098.60

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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.