Finding the Fourth Proportional to 826,497.88, 1,239,264.97 and 320,467.66
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Solution
The fourth proportional to 826,497.88, 1,239,264.97 and 320,467.66 is: 480,514.65
Step by Step Solution
- Step 1: Write the proportion equation
826,497.88 : 1,239,264.97 = 320,467.66 : x - Step 2: Convert to fraction form
826,497.88/1,239,264.97 = 320,467.66/x - Step 3: Cross multiply
826,497.88x = 1,239,264.97 × 320,467.66 - Step 4: Simplify right side
826,497.88x = 397,144,341,156.54 - Step 5: Solve for x
x = 397,144,341,156.54/826,497.88 - Step 6: Final answer
x = 480,514.65
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1.5x scale
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.