Finding the Fourth Proportional to 1,078,613.84, 1,618,128.84 and 413,714
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Solution
The fourth proportional to 1,078,613.84, 1,618,128.84 and 413,714 is: 620,650.81
Step by Step Solution
- Step 1: Write the proportion equation
1,078,613.84 : 1,618,128.84 = 413,714 : x - Step 2: Convert to fraction form
1,078,613.84/1,618,128.84 = 413,714/x - Step 3: Cross multiply
1,078,613.84x = 1,618,128.84 × 413,714 - Step 4: Simplify right side
1,078,613.84x = 669,442,554,911.76 - Step 5: Solve for x
x = 669,442,554,911.76/1,078,613.84 - Step 6: Final answer
x = 620,650.81
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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.