Finding the Fourth Proportional to 426,476.70, 639,423.45 and 201,944.70
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Solution
The fourth proportional to 426,476.70, 639,423.45 and 201,944.70 is: 302,778.97
Step by Step Solution
- Step 1: Write the proportion equation
426,476.70 : 639,423.45 = 201,944.70 : x - Step 2: Convert to fraction form
426,476.70/639,423.45 = 201,944.70/x - Step 3: Cross multiply
426,476.70x = 639,423.45 × 201,944.70 - Step 4: Simplify right side
426,476.70x = 129,128,176,783.22 - Step 5: Solve for x
x = 129,128,176,783.22/426,476.70 - Step 6: Final answer
x = 302,778.97
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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.