Finding the Fourth Proportional to 656,548.42, 906,036.81 and 354,742.42
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Solution
The fourth proportional to 656,548.42, 906,036.81 and 354,742.42 is: 489,544.53
Step by Step Solution
- Step 1: Write the proportion equation
656,548.42 : 906,036.81 = 354,742.42 : x - Step 2: Convert to fraction form
656,548.42/906,036.81 = 354,742.42/x - Step 3: Cross multiply
656,548.42x = 906,036.81 × 354,742.42 - Step 4: Simplify right side
656,548.42x = 321,409,686,993.10 - Step 5: Solve for x
x = 321,409,686,993.10/656,548.42 - Step 6: Final answer
x = 489,544.53
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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.