Finding the Fourth Proportional to 507,035.18, 699,708.70 and 280,680.68
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Solution
The fourth proportional to 507,035.18, 699,708.70 and 280,680.68 is: 387,339.42
Step by Step Solution
- Step 1: Write the proportion equation
507,035.18 : 699,708.70 = 280,680.68 : x - Step 2: Convert to fraction form
507,035.18/699,708.70 = 280,680.68/x - Step 3: Cross multiply
507,035.18x = 699,708.70 × 280,680.68 - Step 4: Simplify right side
507,035.18x = 196,394,713,717.92 - Step 5: Solve for x
x = 196,394,713,717.92/507,035.18 - Step 6: Final answer
x = 387,339.42
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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.