Finding the Fourth Proportional to 418,914.99, 578,114.87 and 227,940.66
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Solution
The fourth proportional to 418,914.99, 578,114.87 and 227,940.66 is: 314,564.74
Step by Step Solution
- Step 1: Write the proportion equation
418,914.99 : 578,114.87 = 227,940.66 : x - Step 2: Convert to fraction form
418,914.99/578,114.87 = 227,940.66/x - Step 3: Cross multiply
418,914.99x = 578,114.87 × 227,940.66 - Step 4: Simplify right side
418,914.99x = 131,775,883,883.91 - Step 5: Solve for x
x = 131,775,883,883.91/418,914.99 - Step 6: Final answer
x = 314,564.74
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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.