Finding the Fourth Proportional to 1,439,413.69, 1,986,392.05 and 923,165.99
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Solution
The fourth proportional to 1,439,413.69, 1,986,392.05 and 923,165.99 is: 1,273,969.80
Step by Step Solution
- Step 1: Write the proportion equation
1,439,413.69 : 1,986,392.05 = 923,165.99 : x - Step 2: Convert to fraction form
1,439,413.69/1,986,392.05 = 923,165.99/x - Step 3: Cross multiply
1,439,413.69x = 1,986,392.05 × 923,165.99 - Step 4: Simplify right side
1,439,413.69x = 1,833,769,572,988.75 - Step 5: Solve for x
x = 1,833,769,572,988.75/1,439,413.69 - Step 6: Final answer
x = 1,273,969.80
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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.