Finding the Fourth Proportional to 725,406.66, 1,088,950.68 and 389,104.11
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Solution
The fourth proportional to 725,406.66, 1,088,950.68 and 389,104.11 is: 584,107.11
Step by Step Solution
- Step 1: Write the proportion equation
725,406.66 : 1,088,950.68 = 389,104.11 : x - Step 2: Convert to fraction form
725,406.66/1,088,950.68 = 389,104.11/x - Step 3: Cross multiply
725,406.66x = 1,088,950.68 × 389,104.11 - Step 4: Simplify right side
725,406.66x = 423,715,185,175.30 - Step 5: Solve for x
x = 423,715,185,175.30/725,406.66 - Step 6: Final answer
x = 584,107.11
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.