Finding the Fourth Proportional to 637,658.80, 879,958.44 and 351,205.54
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Solution
The fourth proportional to 637,658.80, 879,958.44 and 351,205.54 is: 484,657.75
Step by Step Solution
- Step 1: Write the proportion equation
637,658.80 : 879,958.44 = 351,205.54 : x - Step 2: Convert to fraction form
637,658.80/879,958.44 = 351,205.54/x - Step 3: Cross multiply
637,658.80x = 879,958.44 × 351,205.54 - Step 4: Simplify right side
637,658.80x = 309,046,279,097.76 - Step 5: Solve for x
x = 309,046,279,097.76/637,658.80 - Step 6: Final answer
x = 484,657.75
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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.