Finding the Fourth Proportional to 665,236.17, 918,424.70 and 436,193.01
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Solution
The fourth proportional to 665,236.17, 918,424.70 and 436,193.01 is: 602,207.84
Step by Step Solution
- Step 1: Write the proportion equation
665,236.17 : 918,424.70 = 436,193.01 : x - Step 2: Convert to fraction form
665,236.17/918,424.70 = 436,193.01/x - Step 3: Cross multiply
665,236.17x = 918,424.70 × 436,193.01 - Step 4: Simplify right side
665,236.17x = 400,610,432,170.38 - Step 5: Solve for x
x = 400,610,432,170.38/665,236.17 - Step 6: Final answer
x = 602,207.84
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1.5x scale
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.