Finding the Fourth Proportional to 1,138,534.23, 1,707,549.53 and 328,742.94
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Solution
The fourth proportional to 1,138,534.23, 1,707,549.53 and 328,742.94 is: 493,041.70
Step by Step Solution
- Step 1: Write the proportion equation
1,138,534.23 : 1,707,549.53 = 328,742.94 : x - Step 2: Convert to fraction form
1,138,534.23/1,707,549.53 = 328,742.94/x - Step 3: Cross multiply
1,138,534.23x = 1,707,549.53 × 328,742.94 - Step 4: Simplify right side
1,138,534.23x = 561,344,852,687.82 - Step 5: Solve for x
x = 561,344,852,687.82/1,138,534.23 - Step 6: Final answer
x = 493,041.70
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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.