Home / 872,413.94-1,308,621.36-273,421.76

Finding the Fourth Proportional to 872,413.94, 1,308,621.36 and 273,421.76

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Solution

The fourth proportional to 872,413.94, 1,308,621.36 and 273,421.76 is: 410,132.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,413.94 : 1,308,621.36 = 273,421.76 : x
  2. Step 2: Convert to fraction form
    872,413.94/1,308,621.36 = 273,421.76/x
  3. Step 3: Cross multiply
    872,413.94x = 1,308,621.36 × 273,421.76
  4. Step 4: Simplify right side
    872,413.94x = 357,805,555,424.79
  5. Step 5: Solve for x
    x = 357,805,555,424.79/872,413.94
  6. Step 6: Final answer
    x = 410,132.78

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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.