Home / 872,413.63-1,308,620.89-273,421.43

Finding the Fourth Proportional to 872,413.63, 1,308,620.89 and 273,421.43

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Solution

The fourth proportional to 872,413.63, 1,308,620.89 and 273,421.43 is: 410,132.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,413.63 : 1,308,620.89 = 273,421.43 : x
  2. Step 2: Convert to fraction form
    872,413.63/1,308,620.89 = 273,421.43/x
  3. Step 3: Cross multiply
    872,413.63x = 1,308,620.89 × 273,421.43
  4. Step 4: Simplify right side
    872,413.63x = 357,804,993,777.67
  5. Step 5: Solve for x
    x = 357,804,993,777.67/872,413.63
  6. Step 6: Final answer
    x = 410,132.28

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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.