Home / 689,761.04-1,034,629.61-310,413.33

Finding the Fourth Proportional to 689,761.04, 1,034,629.61 and 310,413.33

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Solution

The fourth proportional to 689,761.04, 1,034,629.61 and 310,413.33 is: 465,614.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,761.04 : 1,034,629.61 = 310,413.33 : x
  2. Step 2: Convert to fraction form
    689,761.04/1,034,629.61 = 310,413.33/x
  3. Step 3: Cross multiply
    689,761.04x = 1,034,629.61 × 310,413.33
  4. Step 4: Simplify right side
    689,761.04x = 321,162,821,004.64
  5. Step 5: Solve for x
    x = 321,162,821,004.64/689,761.04
  6. Step 6: Final answer
    x = 465,614.62

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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.