Home / 641,100.20-884,707.36-354,620.06

Finding the Fourth Proportional to 641,100.20, 884,707.36 and 354,620.06

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Solution

The fourth proportional to 641,100.20, 884,707.36 and 354,620.06 is: 489,369.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,100.20 : 884,707.36 = 354,620.06 : x
  2. Step 2: Convert to fraction form
    641,100.20/884,707.36 = 354,620.06/x
  3. Step 3: Cross multiply
    641,100.20x = 884,707.36 × 354,620.06
  4. Step 4: Simplify right side
    641,100.20x = 313,734,971,775.56
  5. Step 5: Solve for x
    x = 313,734,971,775.56/641,100.20
  6. Step 6: Final answer
    x = 489,369.63

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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.