Finding the Fourth Proportional to 985,518.14, 1,358,782.80 and 822,409.63
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Solution
The fourth proportional to 985,518.14, 1,358,782.80 and 822,409.63 is: 1,133,896.99
Step by Step Solution
- Step 1: Write the proportion equation
985,518.14 : 1,358,782.80 = 822,409.63 : x - Step 2: Convert to fraction form
985,518.14/1,358,782.80 = 822,409.63/x - Step 3: Cross multiply
985,518.14x = 1,358,782.80 × 822,409.63 - Step 4: Simplify right side
985,518.14x = 1,117,476,057,138.95 - Step 5: Solve for x
x = 1,117,476,057,138.95/985,518.14 - Step 6: Final answer
x = 1,133,896.99
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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.