Finding the Fourth Proportional to 887,645.80, 1,331,252.70 and 256,493.80
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Solution
The fourth proportional to 887,645.80, 1,331,252.70 and 256,493.80 is: 384,678.28
Step by Step Solution
- Step 1: Write the proportion equation
887,645.80 : 1,331,252.70 = 256,493.80 : x - Step 2: Convert to fraction form
887,645.80/1,331,252.70 = 256,493.80/x - Step 3: Cross multiply
887,645.80x = 1,331,252.70 × 256,493.80 - Step 4: Simplify right side
887,645.80x = 341,458,063,783.26 - Step 5: Solve for x
x = 341,458,063,783.26/887,645.80 - Step 6: Final answer
x = 384,678.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.