Finding the Fourth Proportional to 488,398.79, 673,992.39 and 284,589.53
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Solution
The fourth proportional to 488,398.79, 673,992.39 and 284,589.53 is: 392,734.75
Step by Step Solution
- Step 1: Write the proportion equation
488,398.79 : 673,992.39 = 284,589.53 : x - Step 2: Convert to fraction form
488,398.79/673,992.39 = 284,589.53/x - Step 3: Cross multiply
488,398.79x = 673,992.39 × 284,589.53 - Step 4: Simplify right side
488,398.79x = 191,811,175,822.79 - Step 5: Solve for x
x = 191,811,175,822.79/488,398.79 - Step 6: Final answer
x = 392,734.75
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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.