Finding the Fourth Proportional to 1,422,855.38, 1,963,517.36 and 778,269.94
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Solution
The fourth proportional to 1,422,855.38, 1,963,517.36 and 778,269.94 is: 1,073,999.89
Step by Step Solution
- Step 1: Write the proportion equation
1,422,855.38 : 1,963,517.36 = 778,269.94 : x - Step 2: Convert to fraction form
1,422,855.38/1,963,517.36 = 778,269.94/x - Step 3: Cross multiply
1,422,855.38x = 1,963,517.36 × 778,269.94 - Step 4: Simplify right side
1,422,855.38x = 1,528,146,529,156.02 - Step 5: Solve for x
x = 1,528,146,529,156.02/1,422,855.38 - Step 6: Final answer
x = 1,073,999.89
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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.