Finding the Fourth Proportional to 1,101,380.91, 1,652,071.37 and 391,436.97
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Solution
The fourth proportional to 1,101,380.91, 1,652,071.37 and 391,436.97 is: 587,155.46
Step by Step Solution
- Step 1: Write the proportion equation
1,101,380.91 : 1,652,071.37 = 391,436.97 : x - Step 2: Convert to fraction form
1,101,380.91/1,652,071.37 = 391,436.97/x - Step 3: Cross multiply
1,101,380.91x = 1,652,071.37 × 391,436.97 - Step 4: Simplify right side
1,101,380.91x = 646,681,809,339.36 - Step 5: Solve for x
x = 646,681,809,339.36/1,101,380.91 - Step 6: Final answer
x = 587,155.46
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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.