Finding the Fourth Proportional to 1,422,687.18, 1,963,283.49 and 778,093.23
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Solution
The fourth proportional to 1,422,687.18, 1,963,283.49 and 778,093.23 is: 1,073,755.08
Step by Step Solution
- Step 1: Write the proportion equation
1,422,687.18 : 1,963,283.49 = 778,093.23 : x - Step 2: Convert to fraction form
1,422,687.18/1,963,283.49 = 778,093.23/x - Step 3: Cross multiply
1,422,687.18x = 1,963,283.49 × 778,093.23 - Step 4: Simplify right side
1,422,687.18x = 1,527,617,592,139.77 - Step 5: Solve for x
x = 1,527,617,592,139.77/1,422,687.18 - Step 6: Final answer
x = 1,073,755.08
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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.