Finding the Fourth Proportional to 1,578,361.56, 2,177,976.41 and 1,165,118.19
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Solution
The fourth proportional to 1,578,361.56, 2,177,976.41 and 1,165,118.19 is: 1,607,743.11
Step by Step Solution
- Step 1: Write the proportion equation
1,578,361.56 : 2,177,976.41 = 1,165,118.19 : x - Step 2: Convert to fraction form
1,578,361.56/2,177,976.41 = 1,165,118.19/x - Step 3: Cross multiply
1,578,361.56x = 2,177,976.41 × 1,165,118.19 - Step 4: Simplify right side
1,578,361.56x = 2,537,599,926,856.31 - Step 5: Solve for x
x = 2,537,599,926,856.31/1,578,361.56 - Step 6: Final answer
x = 1,607,743.11
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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.