Finding the Fourth Proportional to 521,651.70, 782,477.55 and 403,553.70
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Solution
The fourth proportional to 521,651.70, 782,477.55 and 403,553.70 is: 605,330.55
Step by Step Solution
- Step 1: Write the proportion equation
521,651.70 : 782,477.55 = 403,553.70 : x - Step 2: Convert to fraction form
521,651.70/782,477.55 = 403,553.70/x - Step 3: Cross multiply
521,651.70x = 782,477.55 × 403,553.70 - Step 4: Simplify right side
521,651.70x = 315,771,710,469.44 - Step 5: Solve for x
x = 315,771,710,469.44/521,651.70 - Step 6: Final answer
x = 605,330.55
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Similar ratio
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1.5x scale
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.