Home / 990,249.07-1,485,379.74-350,413.51

Finding the Fourth Proportional to 990,249.07, 1,485,379.74 and 350,413.51

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Solution

The fourth proportional to 990,249.07, 1,485,379.74 and 350,413.51 is: 525,622.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,249.07 : 1,485,379.74 = 350,413.51 : x
  2. Step 2: Convert to fraction form
    990,249.07/1,485,379.74 = 350,413.51/x
  3. Step 3: Cross multiply
    990,249.07x = 1,485,379.74 × 350,413.51
  4. Step 4: Simplify right side
    990,249.07x = 520,497,119,197.32
  5. Step 5: Solve for x
    x = 520,497,119,197.32/990,249.07
  6. Step 6: Final answer
    x = 525,622.43

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1.5x scale

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.