Finding the Fourth Proportional to 818,550, 1,129,449.04 and 455,964.84
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Solution
The fourth proportional to 818,550, 1,129,449.04 and 455,964.84 is: 629,147.95
Step by Step Solution
- Step 1: Write the proportion equation
818,550 : 1,129,449.04 = 455,964.84 : x - Step 2: Convert to fraction form
818,550/1,129,449.04 = 455,964.84/x - Step 3: Cross multiply
818,550x = 1,129,449.04 × 455,964.84 - Step 4: Simplify right side
818,550x = 514,989,050,811.75 - Step 5: Solve for x
x = 514,989,050,811.75/818,550 - Step 6: Final answer
x = 629,147.95
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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.