Finding the Fourth Proportional to 686,555.42, 1,028,492.42 and 326,213.46
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Solution
The fourth proportional to 686,555.42, 1,028,492.42 and 326,213.46 is: 488,683.16
Step by Step Solution
- Step 1: Write the proportion equation
686,555.42 : 1,028,492.42 = 326,213.46 : x - Step 2: Convert to fraction form
686,555.42/1,028,492.42 = 326,213.46/x - Step 3: Cross multiply
686,555.42x = 1,028,492.42 × 326,213.46 - Step 4: Simplify right side
686,555.42x = 335,508,070,911.97 - Step 5: Solve for x
x = 335,508,070,911.97/686,555.42 - Step 6: Final answer
x = 488,683.16
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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.