Finding the Fourth Proportional to 826,486.19, 1,239,247.59 and 320,456
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Solution
The fourth proportional to 826,486.19, 1,239,247.59 and 320,456 is: 480,497.23
Step by Step Solution
- Step 1: Write the proportion equation
826,486.19 : 1,239,247.59 = 320,456 : x - Step 2: Convert to fraction form
826,486.19/1,239,247.59 = 320,456/x - Step 3: Cross multiply
826,486.19x = 1,239,247.59 × 320,456 - Step 4: Simplify right side
826,486.19x = 397,124,325,701.04 - Step 5: Solve for x
x = 397,124,325,701.04/826,486.19 - Step 6: Final answer
x = 480,497.23
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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.