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Finding the Fourth Proportional to 641,309.89, 884,993.98 and 350,920.26

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Solution

The fourth proportional to 641,309.89, 884,993.98 and 350,920.26 is: 484,262.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,309.89 : 884,993.98 = 350,920.26 : x
  2. Step 2: Convert to fraction form
    641,309.89/884,993.98 = 350,920.26/x
  3. Step 3: Cross multiply
    641,309.89x = 884,993.98 × 350,920.26
  4. Step 4: Simplify right side
    641,309.89x = 310,562,317,560.04
  5. Step 5: Solve for x
    x = 310,562,317,560.04/641,309.89
  6. Step 6: Final answer
    x = 484,262.48

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1.5x scale

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.