Finding the Fourth Proportional to 1,173,159.18, 1,618,984.26 and 663,861.42
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Solution
The fourth proportional to 1,173,159.18, 1,618,984.26 and 663,861.42 is: 916,142.68
Step by Step Solution
- Step 1: Write the proportion equation
1,173,159.18 : 1,618,984.26 = 663,861.42 : x - Step 2: Convert to fraction form
1,173,159.18/1,618,984.26 = 663,861.42/x - Step 3: Cross multiply
1,173,159.18x = 1,618,984.26 × 663,861.42 - Step 4: Simplify right side
1,173,159.18x = 1,074,781,189,801.25 - Step 5: Solve for x
x = 1,074,781,189,801.25/1,173,159.18 - Step 6: Final answer
x = 916,142.68
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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.