Finding the Fourth Proportional to 818,539.20, 1,227,808.80 and 257,573.70
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Solution
The fourth proportional to 818,539.20, 1,227,808.80 and 257,573.70 is: 386,360.55
Step by Step Solution
- Step 1: Write the proportion equation
818,539.20 : 1,227,808.80 = 257,573.70 : x - Step 2: Convert to fraction form
818,539.20/1,227,808.80 = 257,573.70/x - Step 3: Cross multiply
818,539.20x = 1,227,808.80 × 257,573.70 - Step 4: Simplify right side
818,539.20x = 316,251,255,508.56 - Step 5: Solve for x
x = 316,251,255,508.56/818,539.20 - Step 6: Final answer
x = 386,360.55
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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.