Finding the Fourth Proportional to 777,924.12, 1,073,533.68 and 420,228.12
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Solution
The fourth proportional to 777,924.12, 1,073,533.68 and 420,228.12 is: 579,913.94
Step by Step Solution
- Step 1: Write the proportion equation
777,924.12 : 1,073,533.68 = 420,228.12 : x - Step 2: Convert to fraction form
777,924.12/1,073,533.68 = 420,228.12/x - Step 3: Cross multiply
777,924.12x = 1,073,533.68 × 420,228.12 - Step 4: Simplify right side
777,924.12x = 451,129,040,103.08 - Step 5: Solve for x
x = 451,129,040,103.08/777,924.12 - Step 6: Final answer
x = 579,913.94
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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.