Finding the Fourth Proportional to 1,643,454.93, 2,267,838.67 and 908,378.31
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Solution
The fourth proportional to 1,643,454.93, 2,267,838.67 and 908,378.31 is: 1,253,490.69
Step by Step Solution
- Step 1: Write the proportion equation
1,643,454.93 : 2,267,838.67 = 908,378.31 : x - Step 2: Convert to fraction form
1,643,454.93/2,267,838.67 = 908,378.31/x - Step 3: Cross multiply
1,643,454.93x = 2,267,838.67 × 908,378.31 - Step 4: Simplify right side
1,643,454.93x = 2,060,055,458,407.25 - Step 5: Solve for x
x = 2,060,055,458,407.25/1,643,454.93 - Step 6: Final answer
x = 1,253,490.69
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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.