Finding the Fourth Proportional to 1,378,539.24, 1,902,102.93 and 805,468.56
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Solution
The fourth proportional to 1,378,539.24, 1,902,102.93 and 805,468.56 is: 1,111,382.30
Step by Step Solution
- Step 1: Write the proportion equation
1,378,539.24 : 1,902,102.93 = 805,468.56 : x - Step 2: Convert to fraction form
1,378,539.24/1,902,102.93 = 805,468.56/x - Step 3: Cross multiply
1,378,539.24x = 1,902,102.93 × 805,468.56 - Step 4: Simplify right side
1,378,539.24x = 1,532,084,107,998.88 - Step 5: Solve for x
x = 1,532,084,107,998.88/1,378,539.24 - Step 6: Final answer
x = 1,111,382.30
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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.