Finding the Fourth Proportional to 690,119.11, 1,035,389.94 and 353,398.17
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Solution
The fourth proportional to 690,119.11, 1,035,389.94 and 353,398.17 is: 530,205.45
Step by Step Solution
- Step 1: Write the proportion equation
690,119.11 : 1,035,389.94 = 353,398.17 : x - Step 2: Convert to fraction form
690,119.11/1,035,389.94 = 353,398.17/x - Step 3: Cross multiply
690,119.11x = 1,035,389.94 × 353,398.17 - Step 4: Simplify right side
690,119.11x = 365,904,914,577.74 - Step 5: Solve for x
x = 365,904,914,577.74/690,119.11 - Step 6: Final answer
x = 530,205.45
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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.