Finding the Fourth Proportional to 478,311.68, 717,555.81 and 197,850.80
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Solution
The fourth proportional to 478,311.68, 717,555.81 and 197,850.80 is: 296,812.72
Step by Step Solution
- Step 1: Write the proportion equation
478,311.68 : 717,555.81 = 197,850.80 : x - Step 2: Convert to fraction form
478,311.68/717,555.81 = 197,850.80/x - Step 3: Cross multiply
478,311.68x = 717,555.81 × 197,850.80 - Step 4: Simplify right side
478,311.68x = 141,968,993,588.98 - Step 5: Solve for x
x = 141,968,993,588.98/478,311.68 - Step 6: Final answer
x = 296,812.72
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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.