Finding the Fourth Proportional to 1,686,782.07, 2,327,752.28 and 912,413.36
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Solution
The fourth proportional to 1,686,782.07, 2,327,752.28 and 912,413.36 is: 1,259,126.67
Step by Step Solution
- Step 1: Write the proportion equation
1,686,782.07 : 2,327,752.28 = 912,413.36 : x - Step 2: Convert to fraction form
1,686,782.07/2,327,752.28 = 912,413.36/x - Step 3: Cross multiply
1,686,782.07x = 2,327,752.28 × 912,413.36 - Step 4: Simplify right side
1,686,782.07x = 2,123,872,287,142.88 - Step 5: Solve for x
x = 2,123,872,287,142.88/1,686,782.07 - Step 6: Final answer
x = 1,259,126.67
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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.