Finding the Fourth Proportional to 418,620.24, 577,706.88 and 227,644.80
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Solution
The fourth proportional to 418,620.24, 577,706.88 and 227,644.80 is: 314,155.78
Step by Step Solution
- Step 1: Write the proportion equation
418,620.24 : 577,706.88 = 227,644.80 : x - Step 2: Convert to fraction form
418,620.24/577,706.88 = 227,644.80/x - Step 3: Cross multiply
418,620.24x = 577,706.88 × 227,644.80 - Step 4: Simplify right side
418,620.24x = 131,511,967,156.22 - Step 5: Solve for x
x = 131,511,967,156.22/418,620.24 - Step 6: Final answer
x = 314,155.78
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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.