Finding the Fourth Proportional to 1,638,316.16, 2,457,472.12 and 440,238.49
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Solution
The fourth proportional to 1,638,316.16, 2,457,472.12 and 440,238.49 is: 660,357.17
Step by Step Solution
- Step 1: Write the proportion equation
1,638,316.16 : 2,457,472.12 = 440,238.49 : x - Step 2: Convert to fraction form
1,638,316.16/2,457,472.12 = 440,238.49/x - Step 3: Cross multiply
1,638,316.16x = 2,457,472.12 × 440,238.49 - Step 4: Simplify right side
1,638,316.16x = 1,081,873,823,143.07 - Step 5: Solve for x
x = 1,081,873,823,143.07/1,638,316.16 - Step 6: Final answer
x = 660,357.17
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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.