Finding the Fourth Proportional to 1,999,589.20, 2,759,504.09 and 1,128,635.99
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Solution
The fourth proportional to 1,999,589.20, 2,759,504.09 and 1,128,635.99 is: 1,557,557.74
Step by Step Solution
- Step 1: Write the proportion equation
1,999,589.20 : 2,759,504.09 = 1,128,635.99 : x - Step 2: Convert to fraction form
1,999,589.20/2,759,504.09 = 1,128,635.99/x - Step 3: Cross multiply
1,999,589.20x = 2,759,504.09 × 1,128,635.99 - Step 4: Simplify right side
1,999,589.20x = 3,114,475,635,231.16 - Step 5: Solve for x
x = 3,114,475,635,231.16/1,999,589.20 - Step 6: Final answer
x = 1,557,557.74
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.