Finding the Fourth Proportional to 348,460.20, 521,912.70 and 286,252.20
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Solution
The fourth proportional to 348,460.20, 521,912.70 and 286,252.20 is: 428,739.52
Step by Step Solution
- Step 1: Write the proportion equation
348,460.20 : 521,912.70 = 286,252.20 : x - Step 2: Convert to fraction form
348,460.20/521,912.70 = 286,252.20/x - Step 3: Cross multiply
348,460.20x = 521,912.70 × 286,252.20 - Step 4: Simplify right side
348,460.20x = 149,398,658,582.94 - Step 5: Solve for x
x = 149,398,658,582.94/348,460.20 - Step 6: Final answer
x = 428,739.52
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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.