Home / 870,589.51-1,201,413.50-488,616.29

Finding the Fourth Proportional to 870,589.51, 1,201,413.50 and 488,616.29

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Solution

The fourth proportional to 870,589.51, 1,201,413.50 and 488,616.29 is: 674,290.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,589.51 : 1,201,413.50 = 488,616.29 : x
  2. Step 2: Convert to fraction form
    870,589.51/1,201,413.50 = 488,616.29/x
  3. Step 3: Cross multiply
    870,589.51x = 1,201,413.50 × 488,616.29
  4. Step 4: Simplify right side
    870,589.51x = 587,030,198,675.77
  5. Step 5: Solve for x
    x = 587,030,198,675.77/870,589.51
  6. Step 6: Final answer
    x = 674,290.46

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1.5x scale

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.