Finding the Fourth Proportional to 645,932.79, 891,380.84 and 359,447.94
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Solution
The fourth proportional to 645,932.79, 891,380.84 and 359,447.94 is: 496,034.59
Step by Step Solution
- Step 1: Write the proportion equation
645,932.79 : 891,380.84 = 359,447.94 : x - Step 2: Convert to fraction form
645,932.79/891,380.84 = 359,447.94/x - Step 3: Cross multiply
645,932.79x = 891,380.84 × 359,447.94 - Step 4: Simplify right side
645,932.79x = 320,405,004,896.23 - Step 5: Solve for x
x = 320,405,004,896.23/645,932.79 - Step 6: Final answer
x = 496,034.59
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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.