Finding the Fourth Proportional to 1,988,670.96, 2,744,236.71 and 1,172,687.58
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Solution
The fourth proportional to 1,988,670.96, 2,744,236.71 and 1,172,687.58 is: 1,618,232.66
Step by Step Solution
- Step 1: Write the proportion equation
1,988,670.96 : 2,744,236.71 = 1,172,687.58 : x - Step 2: Convert to fraction form
1,988,670.96/2,744,236.71 = 1,172,687.58/x - Step 3: Cross multiply
1,988,670.96x = 2,744,236.71 × 1,172,687.58 - Step 4: Simplify right side
1,988,670.96x = 3,218,132,306,397.06 - Step 5: Solve for x
x = 3,218,132,306,397.06/1,988,670.96 - Step 6: Final answer
x = 1,618,232.66
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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.