Finding the Fourth Proportional to 913,427.73, 1,370,272.86 and 282,390.75
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Solution
The fourth proportional to 913,427.73, 1,370,272.86 and 282,390.75 is: 423,626.71
Step by Step Solution
- Step 1: Write the proportion equation
913,427.73 : 1,370,272.86 = 282,390.75 : x - Step 2: Convert to fraction form
913,427.73/1,370,272.86 = 282,390.75/x - Step 3: Cross multiply
913,427.73x = 1,370,272.86 × 282,390.75 - Step 4: Simplify right side
913,427.73x = 386,952,380,640.05 - Step 5: Solve for x
x = 386,952,380,640.05/913,427.73 - Step 6: Final answer
x = 423,626.71
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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.