Finding the Fourth Proportional to 4,288,542.91, 6,427,829.45 and 1,591,147.60
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Solution
The fourth proportional to 4,288,542.91, 6,427,829.45 and 1,591,147.60 is: 2,384,871.88
Step by Step Solution
- Step 1: Write the proportion equation
4,288,542.91 : 6,427,829.45 = 1,591,147.60 : x - Step 2: Convert to fraction form
4,288,542.91/6,427,829.45 = 1,591,147.60/x - Step 3: Cross multiply
4,288,542.91x = 6,427,829.45 × 1,591,147.60 - Step 4: Simplify right side
4,288,542.91x = 10,227,625,390,485.12 - Step 5: Solve for x
x = 10,227,625,390,485.12/4,288,542.91 - Step 6: Final answer
x = 2,384,871.88
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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.