Finding the Fourth Proportional to 821,782.88, 1,134,054.84 and 459,207.64
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Solution
The fourth proportional to 821,782.88, 1,134,054.84 and 459,207.64 is: 633,703.45
Step by Step Solution
- Step 1: Write the proportion equation
821,782.88 : 1,134,054.84 = 459,207.64 : x - Step 2: Convert to fraction form
821,782.88/1,134,054.84 = 459,207.64/x - Step 3: Cross multiply
821,782.88x = 1,134,054.84 × 459,207.64 - Step 4: Simplify right side
821,782.88x = 520,766,646,706.98 - Step 5: Solve for x
x = 520,766,646,706.98/821,782.88 - Step 6: Final answer
x = 633,703.45
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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.