Finding the Fourth Proportional to 527,785.73, 728,340.21 and 286,062.09
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Solution
The fourth proportional to 527,785.73, 728,340.21 and 286,062.09 is: 394,763.46
Step by Step Solution
- Step 1: Write the proportion equation
527,785.73 : 728,340.21 = 286,062.09 : x - Step 2: Convert to fraction form
527,785.73/728,340.21 = 286,062.09/x - Step 3: Cross multiply
527,785.73x = 728,340.21 × 286,062.09 - Step 4: Simplify right side
527,785.73x = 208,350,522,703.64 - Step 5: Solve for x
x = 208,350,522,703.64/527,785.73 - Step 6: Final answer
x = 394,763.46
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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.