Finding the Fourth Proportional to 665,697.44, 918,438.16 and 379,014.68
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Solution
The fourth proportional to 665,697.44, 918,438.16 and 379,014.68 is: 522,912.55
Step by Step Solution
- Step 1: Write the proportion equation
665,697.44 : 918,438.16 = 379,014.68 : x - Step 2: Convert to fraction form
665,697.44/918,438.16 = 379,014.68/x - Step 3: Cross multiply
665,697.44x = 918,438.16 × 379,014.68 - Step 4: Simplify right side
665,697.44x = 348,101,545,312.19 - Step 5: Solve for x
x = 348,101,545,312.19/665,697.44 - Step 6: Final answer
x = 522,912.55
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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.