Home / 1,488,413.80-2,053,987.62-809,344.36

Finding the Fourth Proportional to 1,488,413.80, 2,053,987.62 and 809,344.36

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Solution

The fourth proportional to 1,488,413.80, 2,053,987.62 and 809,344.36 is: 1,116,882.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,413.80 : 2,053,987.62 = 809,344.36 : x
  2. Step 2: Convert to fraction form
    1,488,413.80/2,053,987.62 = 809,344.36/x
  3. Step 3: Cross multiply
    1,488,413.80x = 2,053,987.62 × 809,344.36
  4. Step 4: Simplify right side
    1,488,413.80x = 1,662,383,295,756.82
  5. Step 5: Solve for x
    x = 1,662,383,295,756.82/1,488,413.80
  6. Step 6: Final answer
    x = 1,116,882.48

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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.