Finding the Fourth Proportional to 548,986.83, 757,429.11 and 307,230.99
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Solution
The fourth proportional to 548,986.83, 757,429.11 and 307,230.99 is: 423,882.11
Step by Step Solution
- Step 1: Write the proportion equation
548,986.83 : 757,429.11 = 307,230.99 : x - Step 2: Convert to fraction form
548,986.83/757,429.11 = 307,230.99/x - Step 3: Cross multiply
548,986.83x = 757,429.11 × 307,230.99 - Step 4: Simplify right side
548,986.83x = 232,705,695,320.12 - Step 5: Solve for x
x = 232,705,695,320.12/548,986.83 - Step 6: Final answer
x = 423,882.11
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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.