Finding the Fourth Proportional to 667,811.18, 921,577.26 and 361,888.76
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Solution
The fourth proportional to 667,811.18, 921,577.26 and 361,888.76 is: 499,405.31
Step by Step Solution
- Step 1: Write the proportion equation
667,811.18 : 921,577.26 = 361,888.76 : x - Step 2: Convert to fraction form
667,811.18/921,577.26 = 361,888.76/x - Step 3: Cross multiply
667,811.18x = 921,577.26 × 361,888.76 - Step 4: Simplify right side
667,811.18x = 333,508,451,865.60 - Step 5: Solve for x
x = 333,508,451,865.60/667,811.18 - Step 6: Final answer
x = 499,405.31
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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.