Finding the Fourth Proportional to 432,570.06, 647,984.97 and 215,775.18
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Solution
The fourth proportional to 432,570.06, 647,984.97 and 215,775.18 is: 323,228.74
Step by Step Solution
- Step 1: Write the proportion equation
432,570.06 : 647,984.97 = 215,775.18 : x - Step 2: Convert to fraction form
432,570.06/647,984.97 = 215,775.18/x - Step 3: Cross multiply
432,570.06x = 647,984.97 × 215,775.18 - Step 4: Simplify right side
432,570.06x = 139,819,073,539.05 - Step 5: Solve for x
x = 139,819,073,539.05/432,570.06 - Step 6: Final answer
x = 323,228.74
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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.