Finding the Fourth Proportional to 965,658.80, 1,448,747.40 and 861,201.20
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Solution
The fourth proportional to 965,658.80, 1,448,747.40 and 861,201.20 is: 1,292,032.96
Step by Step Solution
- Step 1: Write the proportion equation
965,658.80 : 1,448,747.40 = 861,201.20 : x - Step 2: Convert to fraction form
965,658.80/1,448,747.40 = 861,201.20/x - Step 3: Cross multiply
965,658.80x = 1,448,747.40 × 861,201.20 - Step 4: Simplify right side
965,658.80x = 1,247,662,999,376.88 - Step 5: Solve for x
x = 1,247,662,999,376.88/965,658.80 - Step 6: Final answer
x = 1,292,032.96
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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.