Finding the Fourth Proportional to 798,992.21, 1,103,006.93 and 493,237.12
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Solution
The fourth proportional to 798,992.21, 1,103,006.93 and 493,237.12 is: 680,912.72
Step by Step Solution
- Step 1: Write the proportion equation
798,992.21 : 1,103,006.93 = 493,237.12 : x - Step 2: Convert to fraction form
798,992.21/1,103,006.93 = 493,237.12/x - Step 3: Cross multiply
798,992.21x = 1,103,006.93 × 493,237.12 - Step 4: Simplify right side
798,992.21x = 544,043,956,269.54 - Step 5: Solve for x
x = 544,043,956,269.54/798,992.21 - Step 6: Final answer
x = 680,912.72
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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.