Finding the Fourth Proportional to 853,811.96, 1,178,261.64 and 471,838.84
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Solution
The fourth proportional to 853,811.96, 1,178,261.64 and 471,838.84 is: 651,138.23
Step by Step Solution
- Step 1: Write the proportion equation
853,811.96 : 1,178,261.64 = 471,838.84 : x - Step 2: Convert to fraction form
853,811.96/1,178,261.64 = 471,838.84/x - Step 3: Cross multiply
853,811.96x = 1,178,261.64 × 471,838.84 - Step 4: Simplify right side
853,811.96x = 555,949,602,488.44 - Step 5: Solve for x
x = 555,949,602,488.44/853,811.96 - Step 6: Final answer
x = 651,138.23
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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.