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Finding the Fourth Proportional to 646,293.00, 891,653.48 and 374,212.38

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Solution

The fourth proportional to 646,293.00, 891,653.48 and 374,212.38 is: 516,279.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,293.00 : 891,653.48 = 374,212.38 : x
  2. Step 2: Convert to fraction form
    646,293.00/891,653.48 = 374,212.38/x
  3. Step 3: Cross multiply
    646,293.00x = 891,653.48 × 374,212.38
  4. Step 4: Simplify right side
    646,293.00x = 333,667,764,556.75
  5. Step 5: Solve for x
    x = 333,667,764,556.75/646,293.00
  6. Step 6: Final answer
    x = 516,279.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.