Finding the Fourth Proportional to 665,227.35, 918,014.60 and 378,747.36
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Solution
The fourth proportional to 665,227.35, 918,014.60 and 378,747.36 is: 522,671.84
Step by Step Solution
- Step 1: Write the proportion equation
665,227.35 : 918,014.60 = 378,747.36 : x - Step 2: Convert to fraction form
665,227.35/918,014.60 = 378,747.36/x - Step 3: Cross multiply
665,227.35x = 918,014.60 × 378,747.36 - Step 4: Simplify right side
665,227.35x = 347,695,606,191.46 - Step 5: Solve for x
x = 347,695,606,191.46/665,227.35 - Step 6: Final answer
x = 522,671.84
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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.