Finding the Fourth Proportional to 690,402.29, 952,728.58 and 384,491.58
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Solution
The fourth proportional to 690,402.29, 952,728.58 and 384,491.58 is: 530,583.58
Step by Step Solution
- Step 1: Write the proportion equation
690,402.29 : 952,728.58 = 384,491.58 : x - Step 2: Convert to fraction form
690,402.29/952,728.58 = 384,491.58/x - Step 3: Cross multiply
690,402.29x = 952,728.58 × 384,491.58 - Step 4: Simplify right side
690,402.29x = 366,316,113,943.24 - Step 5: Solve for x
x = 366,316,113,943.24/690,402.29 - Step 6: Final answer
x = 530,583.58
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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.