Finding the Fourth Proportional to 493,679.44, 681,277.47 and 278,815.80
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Solution
The fourth proportional to 493,679.44, 681,277.47 and 278,815.80 is: 384,765.72
Step by Step Solution
- Step 1: Write the proportion equation
493,679.44 : 681,277.47 = 278,815.80 : x - Step 2: Convert to fraction form
493,679.44/681,277.47 = 278,815.80/x - Step 3: Cross multiply
493,679.44x = 681,277.47 × 278,815.80 - Step 4: Simplify right side
493,679.44x = 189,950,924,329.26 - Step 5: Solve for x
x = 189,950,924,329.26/493,679.44 - Step 6: Final answer
x = 384,765.72
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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.