Finding the Fourth Proportional to 1,015,742.19, 1,401,739.92 and 556,900.68
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Solution
The fourth proportional to 1,015,742.19, 1,401,739.92 and 556,900.68 is: 768,531.55
Step by Step Solution
- Step 1: Write the proportion equation
1,015,742.19 : 1,401,739.92 = 556,900.68 : x - Step 2: Convert to fraction form
1,015,742.19/1,401,739.92 = 556,900.68/x - Step 3: Cross multiply
1,015,742.19x = 1,401,739.92 × 556,900.68 - Step 4: Simplify right side
1,015,742.19x = 780,629,914,631.15 - Step 5: Solve for x
x = 780,629,914,631.15/1,015,742.19 - Step 6: Final answer
x = 768,531.55
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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.