Finding the Fourth Proportional to 818,479.28, 1,129,535.69 and 455,902.63
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Solution
The fourth proportional to 818,479.28, 1,129,535.69 and 455,902.63 is: 629,164.72
Step by Step Solution
- Step 1: Write the proportion equation
818,479.28 : 1,129,535.69 = 455,902.63 : x - Step 2: Convert to fraction form
818,479.28/1,129,535.69 = 455,902.63/x - Step 3: Cross multiply
818,479.28x = 1,129,535.69 × 455,902.63 - Step 4: Simplify right side
818,479.28x = 514,958,286,646.51 - Step 5: Solve for x
x = 514,958,286,646.51/818,479.28 - Step 6: Final answer
x = 629,164.72
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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.