Finding the Fourth Proportional to 1,578,716.38, 2,179,624.80 and 1,095,112.36
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Solution
The fourth proportional to 1,578,716.38, 2,179,624.80 and 1,095,112.36 is: 1,511,946.09
Step by Step Solution
- Step 1: Write the proportion equation
1,578,716.38 : 2,179,624.80 = 1,095,112.36 : x - Step 2: Convert to fraction form
1,578,716.38/2,179,624.80 = 1,095,112.36/x - Step 3: Cross multiply
1,578,716.38x = 2,179,624.80 × 1,095,112.36 - Step 4: Simplify right side
1,578,716.38x = 2,386,934,058,642.53 - Step 5: Solve for x
x = 2,386,934,058,642.53/1,578,716.38 - Step 6: Final answer
x = 1,511,946.09
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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.