Finding the Fourth Proportional to 463,545.99, 639,678.51 and 256,805.87
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Solution
The fourth proportional to 463,545.99, 639,678.51 and 256,805.87 is: 354,383.81
Step by Step Solution
- Step 1: Write the proportion equation
463,545.99 : 639,678.51 = 256,805.87 : x - Step 2: Convert to fraction form
463,545.99/639,678.51 = 256,805.87/x - Step 3: Cross multiply
463,545.99x = 639,678.51 × 256,805.87 - Step 4: Simplify right side
463,545.99x = 164,273,193,082.46 - Step 5: Solve for x
x = 164,273,193,082.46/463,545.99 - Step 6: Final answer
x = 354,383.81
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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.