Finding the Fourth Proportional to 1,490,744.20, 2,236,116.30 and 818,897.80
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Solution
The fourth proportional to 1,490,744.20, 2,236,116.30 and 818,897.80 is: 1,228,346.70
Step by Step Solution
- Step 1: Write the proportion equation
1,490,744.20 : 2,236,116.30 = 818,897.80 : x - Step 2: Convert to fraction form
1,490,744.20/2,236,116.30 = 818,897.80/x - Step 3: Cross multiply
1,490,744.20x = 2,236,116.30 × 818,897.80 - Step 4: Simplify right side
1,490,744.20x = 1,831,150,718,614.14 - Step 5: Solve for x
x = 1,831,150,718,614.14/1,490,744.20 - Step 6: Final answer
x = 1,228,346.70
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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.