Finding the Fourth Proportional to 813,185.09, 1,122,165.11 and 469,035.13
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Solution
The fourth proportional to 813,185.09, 1,122,165.11 and 469,035.13 is: 647,250.98
Step by Step Solution
- Step 1: Write the proportion equation
813,185.09 : 1,122,165.11 = 469,035.13 : x - Step 2: Convert to fraction form
813,185.09/1,122,165.11 = 469,035.13/x - Step 3: Cross multiply
813,185.09x = 1,122,165.11 × 469,035.13 - Step 4: Simplify right side
813,185.09x = 526,334,850,294.31 - Step 5: Solve for x
x = 526,334,850,294.31/813,185.09 - Step 6: Final answer
x = 647,250.98
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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.