Home / 1,133,998.80-1,698,665.40-779,413.20

Finding the Fourth Proportional to 1,133,998.80, 1,698,665.40 and 779,413.20

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Solution

The fourth proportional to 1,133,998.80, 1,698,665.40 and 779,413.20 is: 1,167,516.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133,998.80 : 1,698,665.40 = 779,413.20 : x
  2. Step 2: Convert to fraction form
    1,133,998.80/1,698,665.40 = 779,413.20/x
  3. Step 3: Cross multiply
    1,133,998.80x = 1,698,665.40 × 779,413.20
  4. Step 4: Simplify right side
    1,133,998.80x = 1,323,962,235,143.28
  5. Step 5: Solve for x
    x = 1,323,962,235,143.28/1,133,998.80
  6. Step 6: Final answer
    x = 1,167,516.43

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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.