Home / 870,606.69-1,201,413.22-521,944.21

Finding the Fourth Proportional to 870,606.69, 1,201,413.22 and 521,944.21

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Solution

The fourth proportional to 870,606.69, 1,201,413.22 and 521,944.21 is: 720,268.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,606.69 : 1,201,413.22 = 521,944.21 : x
  2. Step 2: Convert to fraction form
    870,606.69/1,201,413.22 = 521,944.21/x
  3. Step 3: Cross multiply
    870,606.69x = 1,201,413.22 × 521,944.21
  4. Step 4: Simplify right side
    870,606.69x = 627,070,673,996.46
  5. Step 5: Solve for x
    x = 627,070,673,996.46/870,606.69
  6. Step 6: Final answer
    x = 720,268.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.