Finding the Fourth Proportional to 1,185,321.99, 1,635,744.24 and 641,457.77
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Solution
The fourth proportional to 1,185,321.99, 1,635,744.24 and 641,457.77 is: 885,211.67
Step by Step Solution
- Step 1: Write the proportion equation
1,185,321.99 : 1,635,744.24 = 641,457.77 : x - Step 2: Convert to fraction form
1,185,321.99/1,635,744.24 = 641,457.77/x - Step 3: Cross multiply
1,185,321.99x = 1,635,744.24 × 641,457.77 - Step 4: Simplify right side
1,185,321.99x = 1,049,260,852,480.74 - Step 5: Solve for x
x = 1,049,260,852,480.74/1,185,321.99 - Step 6: Final answer
x = 885,211.67
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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.