Finding the Fourth Proportional to 489,381.08, 675,583.29 and 328,177.28
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Solution
The fourth proportional to 489,381.08, 675,583.29 and 328,177.28 is: 453,043.85
Step by Step Solution
- Step 1: Write the proportion equation
489,381.08 : 675,583.29 = 328,177.28 : x - Step 2: Convert to fraction form
489,381.08/675,583.29 = 328,177.28/x - Step 3: Cross multiply
489,381.08x = 675,583.29 × 328,177.28 - Step 4: Simplify right side
489,381.08x = 221,711,086,525.65 - Step 5: Solve for x
x = 221,711,086,525.65/489,381.08 - Step 6: Final answer
x = 453,043.85
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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.