Finding the Fourth Proportional to 1,603,541.82, 2,212,888.16 and 878,415.51
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Solution
The fourth proportional to 1,603,541.82, 2,212,888.16 and 878,415.51 is: 1,212,213.65
Step by Step Solution
- Step 1: Write the proportion equation
1,603,541.82 : 2,212,888.16 = 878,415.51 : x - Step 2: Convert to fraction form
1,603,541.82/2,212,888.16 = 878,415.51/x - Step 3: Cross multiply
1,603,541.82x = 2,212,888.16 × 878,415.51 - Step 4: Simplify right side
1,603,541.82x = 1,943,835,281,639.36 - Step 5: Solve for x
x = 1,943,835,281,639.36/1,603,541.82 - Step 6: Final answer
x = 1,212,213.65
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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.