Finding the Fourth Proportional to 656,626.02, 905,989.58 and 398,497.26
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Solution
The fourth proportional to 656,626.02, 905,989.58 and 398,497.26 is: 549,832.56
Step by Step Solution
- Step 1: Write the proportion equation
656,626.02 : 905,989.58 = 398,497.26 : x - Step 2: Convert to fraction form
656,626.02/905,989.58 = 398,497.26/x - Step 3: Cross multiply
656,626.02x = 905,989.58 × 398,497.26 - Step 4: Simplify right side
656,626.02x = 361,034,365,218.55 - Step 5: Solve for x
x = 361,034,365,218.55/656,626.02 - Step 6: Final answer
x = 549,832.56
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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.