Finding the Fourth Proportional to 418,807.29, 577,958.49 and 227,821.17
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Solution
The fourth proportional to 418,807.29, 577,958.49 and 227,821.17 is: 314,395.62
Step by Step Solution
- Step 1: Write the proportion equation
418,807.29 : 577,958.49 = 227,821.17 : x - Step 2: Convert to fraction form
418,807.29/577,958.49 = 227,821.17/x - Step 3: Cross multiply
418,807.29x = 577,958.49 × 227,821.17 - Step 4: Simplify right side
418,807.29x = 131,671,179,403.23 - Step 5: Solve for x
x = 131,671,179,403.23/418,807.29 - Step 6: Final answer
x = 314,395.62
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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.