Finding the Fourth Proportional to 845,855.40, 1,268,785.02 and 285,283.56
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Solution
The fourth proportional to 845,855.40, 1,268,785.02 and 285,283.56 is: 427,925.99
Step by Step Solution
- Step 1: Write the proportion equation
845,855.40 : 1,268,785.02 = 285,283.56 : x - Step 2: Convert to fraction form
845,855.40/1,268,785.02 = 285,283.56/x - Step 3: Cross multiply
845,855.40x = 1,268,785.02 × 285,283.56 - Step 4: Simplify right side
845,855.40x = 361,963,507,380.27 - Step 5: Solve for x
x = 361,963,507,380.27/845,855.40 - Step 6: Final answer
x = 427,925.99
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1.5x scale
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.