Home / 872,413.91-1,308,621.31-273,421.71

Finding the Fourth Proportional to 872,413.91, 1,308,621.31 and 273,421.71

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Solution

The fourth proportional to 872,413.91, 1,308,621.31 and 273,421.71 is: 410,132.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,413.91 : 1,308,621.31 = 273,421.71 : x
  2. Step 2: Convert to fraction form
    872,413.91/1,308,621.31 = 273,421.71/x
  3. Step 3: Cross multiply
    872,413.91x = 1,308,621.31 × 273,421.71
  4. Step 4: Simplify right side
    872,413.91x = 357,805,475,639.09
  5. Step 5: Solve for x
    x = 357,805,475,639.09/872,413.91
  6. Step 6: Final answer
    x = 410,132.70

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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.