Finding the Fourth Proportional to 478,394.87, 717,343.16 and 178,628.94
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Solution
The fourth proportional to 478,394.87, 717,343.16 and 178,628.94 is: 267,850.38
Step by Step Solution
- Step 1: Write the proportion equation
478,394.87 : 717,343.16 = 178,628.94 : x - Step 2: Convert to fraction form
478,394.87/717,343.16 = 178,628.94/x - Step 3: Cross multiply
478,394.87x = 717,343.16 × 178,628.94 - Step 4: Simplify right side
478,394.87x = 128,138,247,393.91 - Step 5: Solve for x
x = 128,138,247,393.91/478,394.87 - Step 6: Final answer
x = 267,850.38
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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.