Finding the Fourth Proportional to 1,216,249.74, 1,678,413.69 and 672,399.36
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Solution
The fourth proportional to 1,216,249.74, 1,678,413.69 and 672,399.36 is: 927,905.06
Step by Step Solution
- Step 1: Write the proportion equation
1,216,249.74 : 1,678,413.69 = 672,399.36 : x - Step 2: Convert to fraction form
1,216,249.74/1,678,413.69 = 672,399.36/x - Step 3: Cross multiply
1,216,249.74x = 1,678,413.69 × 672,399.36 - Step 4: Simplify right side
1,216,249.74x = 1,128,564,290,971.24 - Step 5: Solve for x
x = 1,128,564,290,971.24/1,216,249.74 - Step 6: Final answer
x = 927,905.06
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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.