Finding the Fourth Proportional to 551,131.11, 760,518.87 and 309,366.99
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Solution
The fourth proportional to 551,131.11, 760,518.87 and 309,366.99 is: 426,902.84
Step by Step Solution
- Step 1: Write the proportion equation
551,131.11 : 760,518.87 = 309,366.99 : x - Step 2: Convert to fraction form
551,131.11/760,518.87 = 309,366.99/x - Step 3: Cross multiply
551,131.11x = 760,518.87 × 309,366.99 - Step 4: Simplify right side
551,131.11x = 235,279,433,650.10 - Step 5: Solve for x
x = 235,279,433,650.10/551,131.11 - Step 6: Final answer
x = 426,902.84
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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.