Finding the Fourth Proportional to 818,942.88, 1,130,175.84 and 456,366.88
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Solution
The fourth proportional to 818,942.88, 1,130,175.84 and 456,366.88 is: 629,805.61
Step by Step Solution
- Step 1: Write the proportion equation
818,942.88 : 1,130,175.84 = 456,366.88 : x - Step 2: Convert to fraction form
818,942.88/1,130,175.84 = 456,366.88/x - Step 3: Cross multiply
818,942.88x = 1,130,175.84 × 456,366.88 - Step 4: Simplify right side
818,942.88x = 515,774,821,952.18 - Step 5: Solve for x
x = 515,774,821,952.18/818,942.88 - Step 6: Final answer
x = 629,805.61
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1.5x scale
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.