Finding the Fourth Proportional to 1,385,272.64, 2,078,116.76 and 486,556
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Solution
The fourth proportional to 1,385,272.64, 2,078,116.76 and 486,556 is: 729,906.99
Step by Step Solution
- Step 1: Write the proportion equation
1,385,272.64 : 2,078,116.76 = 486,556 : x - Step 2: Convert to fraction form
1,385,272.64/2,078,116.76 = 486,556/x - Step 3: Cross multiply
1,385,272.64x = 2,078,116.76 × 486,556 - Step 4: Simplify right side
1,385,272.64x = 1,011,120,178,278.56 - Step 5: Solve for x
x = 1,011,120,178,278.56/1,385,272.64 - Step 6: Final answer
x = 729,906.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.