Finding the Fourth Proportional to 826,487.19, 1,239,249.09 and 320,457
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Solution
The fourth proportional to 826,487.19, 1,239,249.09 and 320,457 is: 480,498.73
Step by Step Solution
- Step 1: Write the proportion equation
826,487.19 : 1,239,249.09 = 320,457 : x - Step 2: Convert to fraction form
826,487.19/1,239,249.09 = 320,457/x - Step 3: Cross multiply
826,487.19x = 1,239,249.09 × 320,457 - Step 4: Simplify right side
826,487.19x = 397,126,045,634.13 - Step 5: Solve for x
x = 397,126,045,634.13/826,487.19 - Step 6: Final answer
x = 480,498.73
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.