Finding the Fourth Proportional to 498,445.61, 687,846.11 and 283,581.09
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Solution
The fourth proportional to 498,445.61, 687,846.11 and 283,581.09 is: 391,336.88
Step by Step Solution
- Step 1: Write the proportion equation
498,445.61 : 687,846.11 = 283,581.09 : x - Step 2: Convert to fraction form
498,445.61/687,846.11 = 283,581.09/x - Step 3: Cross multiply
498,445.61x = 687,846.11 × 283,581.09 - Step 4: Simplify right side
498,445.61x = 195,060,148,208.15 - Step 5: Solve for x
x = 195,060,148,208.15/498,445.61 - Step 6: Final answer
x = 391,336.88
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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.