Finding the Fourth Proportional to 455,997.18, 683,626.80 and 189,957.54
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Solution
The fourth proportional to 455,997.18, 683,626.80 and 189,957.54 is: 284,782.61
Step by Step Solution
- Step 1: Write the proportion equation
455,997.18 : 683,626.80 = 189,957.54 : x - Step 2: Convert to fraction form
455,997.18/683,626.80 = 189,957.54/x - Step 3: Cross multiply
455,997.18x = 683,626.80 × 189,957.54 - Step 4: Simplify right side
455,997.18x = 129,860,065,206.07 - Step 5: Solve for x
x = 129,860,065,206.07/455,997.18 - Step 6: Final answer
x = 284,782.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.