Finding the Fourth Proportional to 639,419.62, 882,406.35 and 352,939.84
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Solution
The fourth proportional to 639,419.62, 882,406.35 and 352,939.84 is: 487,060.99
Step by Step Solution
- Step 1: Write the proportion equation
639,419.62 : 882,406.35 = 352,939.84 : x - Step 2: Convert to fraction form
639,419.62/882,406.35 = 352,939.84/x - Step 3: Cross multiply
639,419.62x = 882,406.35 × 352,939.84 - Step 4: Simplify right side
639,419.62x = 311,436,355,983.98 - Step 5: Solve for x
x = 311,436,355,983.98/639,419.62 - Step 6: Final answer
x = 487,060.99
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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.