Finding the Fourth Proportional to 493,755.93, 681,438.60 and 278,909.84
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Solution
The fourth proportional to 493,755.93, 681,438.60 and 278,909.84 is: 384,926.88
Step by Step Solution
- Step 1: Write the proportion equation
493,755.93 : 681,438.60 = 278,909.84 : x - Step 2: Convert to fraction form
493,755.93/681,438.60 = 278,909.84/x - Step 3: Cross multiply
493,755.93x = 681,438.60 × 278,909.84 - Step 4: Simplify right side
493,755.93x = 190,059,930,895.82 - Step 5: Solve for x
x = 190,059,930,895.82/493,755.93 - Step 6: Final answer
x = 384,926.88
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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.