Finding the Fourth Proportional to 498,998.04, 688,609.26 and 272,638.68
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Solution
The fourth proportional to 498,998.04, 688,609.26 and 272,638.68 is: 376,236.99
Step by Step Solution
- Step 1: Write the proportion equation
498,998.04 : 688,609.26 = 272,638.68 : x - Step 2: Convert to fraction form
498,998.04/688,609.26 = 272,638.68/x - Step 3: Cross multiply
498,998.04x = 688,609.26 × 272,638.68 - Step 4: Simplify right side
498,998.04x = 187,741,519,682.18 - Step 5: Solve for x
x = 187,741,519,682.18/498,998.04 - Step 6: Final answer
x = 376,236.99
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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.