Finding the Fourth Proportional to 1,643,830.12, 2,268,555.62 and 918,677.82
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Solution
The fourth proportional to 1,643,830.12, 2,268,555.62 and 918,677.82 is: 1,267,814.54
Step by Step Solution
- Step 1: Write the proportion equation
1,643,830.12 : 2,268,555.62 = 918,677.82 : x - Step 2: Convert to fraction form
1,643,830.12/2,268,555.62 = 918,677.82/x - Step 3: Cross multiply
1,643,830.12x = 2,268,555.62 × 918,677.82 - Step 4: Simplify right side
1,643,830.12x = 2,084,071,726,181.22 - Step 5: Solve for x
x = 2,084,071,726,181.22/1,643,830.12 - Step 6: Final answer
x = 1,267,814.54
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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.