Finding the Fourth Proportional to 1,578,066.12, 2,177,687.68 and 889,732.08
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Solution
The fourth proportional to 1,578,066.12, 2,177,687.68 and 889,732.08 is: 1,227,805.71
Step by Step Solution
- Step 1: Write the proportion equation
1,578,066.12 : 2,177,687.68 = 889,732.08 : x - Step 2: Convert to fraction form
1,578,066.12/2,177,687.68 = 889,732.08/x - Step 3: Cross multiply
1,578,066.12x = 2,177,687.68 × 889,732.08 - Step 4: Simplify right side
1,578,066.12x = 1,937,558,589,116.77 - Step 5: Solve for x
x = 1,937,558,589,116.77/1,578,066.12 - Step 6: Final answer
x = 1,227,805.71
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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.