Finding the Fourth Proportional to 492,708.70, 739,063.05 and 193,089.70
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Solution
The fourth proportional to 492,708.70, 739,063.05 and 193,089.70 is: 289,634.55
Step by Step Solution
- Step 1: Write the proportion equation
492,708.70 : 739,063.05 = 193,089.70 : x - Step 2: Convert to fraction form
492,708.70/739,063.05 = 193,089.70/x - Step 3: Cross multiply
492,708.70x = 739,063.05 × 193,089.70 - Step 4: Simplify right side
492,708.70x = 142,705,462,605.59 - Step 5: Solve for x
x = 142,705,462,605.59/492,708.70 - Step 6: Final answer
x = 289,634.55
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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.