Finding the Fourth Proportional to 486,894.57, 671,940.11 and 293,363.09
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Solution
The fourth proportional to 486,894.57, 671,940.11 and 293,363.09 is: 404,856.48
Step by Step Solution
- Step 1: Write the proportion equation
486,894.57 : 671,940.11 = 293,363.09 : x - Step 2: Convert to fraction form
486,894.57/671,940.11 = 293,363.09/x - Step 3: Cross multiply
486,894.57x = 671,940.11 × 293,363.09 - Step 4: Simplify right side
486,894.57x = 197,122,422,138.02 - Step 5: Solve for x
x = 197,122,422,138.02/486,894.57 - Step 6: Final answer
x = 404,856.48
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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.