Finding the Fourth Proportional to 1,143,912.84, 1,578,739.71 and 660,477.18
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Solution
The fourth proportional to 1,143,912.84, 1,578,739.71 and 660,477.18 is: 911,539.33
Step by Step Solution
- Step 1: Write the proportion equation
1,143,912.84 : 1,578,739.71 = 660,477.18 : x - Step 2: Convert to fraction form
1,143,912.84/1,578,739.71 = 660,477.18/x - Step 3: Cross multiply
1,143,912.84x = 1,578,739.71 × 660,477.18 - Step 4: Simplify right side
1,143,912.84x = 1,042,721,543,721.12 - Step 5: Solve for x
x = 1,042,721,543,721.12/1,143,912.84 - Step 6: Final answer
x = 911,539.33
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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.