Finding the Fourth Proportional to 1,638,316.53, 2,457,472.68 and 440,238.87
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Solution
The fourth proportional to 1,638,316.53, 2,457,472.68 and 440,238.87 is: 660,357.74
Step by Step Solution
- Step 1: Write the proportion equation
1,638,316.53 : 2,457,472.68 = 440,238.87 : x - Step 2: Convert to fraction form
1,638,316.53/2,457,472.68 = 440,238.87/x - Step 3: Cross multiply
1,638,316.53x = 2,457,472.68 × 440,238.87 - Step 4: Simplify right side
1,638,316.53x = 1,081,874,997,349.97 - Step 5: Solve for x
x = 1,081,874,997,349.97/1,638,316.53 - Step 6: Final answer
x = 660,357.74
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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.