Finding the Fourth Proportional to 489,427.84, 675,712.83 and 326,313.82
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Solution
The fourth proportional to 489,427.84, 675,712.83 and 326,313.82 is: 450,514.70
Step by Step Solution
- Step 1: Write the proportion equation
489,427.84 : 675,712.83 = 326,313.82 : x - Step 2: Convert to fraction form
489,427.84/675,712.83 = 326,313.82/x - Step 3: Cross multiply
489,427.84x = 675,712.83 × 326,313.82 - Step 4: Simplify right side
489,427.84x = 220,494,434,780.31 - Step 5: Solve for x
x = 220,494,434,780.31/489,427.84 - Step 6: Final answer
x = 450,514.70
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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.