Finding the Fourth Proportional to 1,638,317.42, 2,457,474.02 and 440,239.76
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Solution
The fourth proportional to 1,638,317.42, 2,457,474.02 and 440,239.76 is: 660,359.07
Step by Step Solution
- Step 1: Write the proportion equation
1,638,317.42 : 2,457,474.02 = 440,239.76 : x - Step 2: Convert to fraction form
1,638,317.42/2,457,474.02 = 440,239.76/x - Step 3: Cross multiply
1,638,317.42x = 2,457,474.02 × 440,239.76 - Step 4: Simplify right side
1,638,317.42x = 1,081,877,769,148.89 - Step 5: Solve for x
x = 1,081,877,769,148.89/1,638,317.42 - Step 6: Final answer
x = 660,359.07
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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.