Finding the Fourth Proportional to 1,389,413.44, 1,917,349.36 and 769,246.24
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Solution
The fourth proportional to 1,389,413.44, 1,917,349.36 and 769,246.24 is: 1,061,537.01
Step by Step Solution
- Step 1: Write the proportion equation
1,389,413.44 : 1,917,349.36 = 769,246.24 : x - Step 2: Convert to fraction form
1,389,413.44/1,917,349.36 = 769,246.24/x - Step 3: Cross multiply
1,389,413.44x = 1,917,349.36 × 769,246.24 - Step 4: Simplify right side
1,389,413.44x = 1,474,913,785,946.41 - Step 5: Solve for x
x = 1,474,913,785,946.41/1,389,413.44 - Step 6: Final answer
x = 1,061,537.01
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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.