Finding the Fourth Proportional to 818,266.12, 1,129,198.14 and 455,682.04
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Solution
The fourth proportional to 818,266.12, 1,129,198.14 and 455,682.04 is: 628,836.14
Step by Step Solution
- Step 1: Write the proportion equation
818,266.12 : 1,129,198.14 = 455,682.04 : x - Step 2: Convert to fraction form
818,266.12/1,129,198.14 = 455,682.04/x - Step 3: Cross multiply
818,266.12x = 1,129,198.14 × 455,682.04 - Step 4: Simplify right side
818,266.12x = 514,555,311,999.41 - Step 5: Solve for x
x = 514,555,311,999.41/818,266.12 - Step 6: Final answer
x = 628,836.14
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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.