Finding the Fourth Proportional to 864,775.44, 1,288,465.30 and 816,486.48
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Solution
The fourth proportional to 864,775.44, 1,288,465.30 and 816,486.48 is: 1,216,517.55
Step by Step Solution
- Step 1: Write the proportion equation
864,775.44 : 1,288,465.30 = 816,486.48 : x - Step 2: Convert to fraction form
864,775.44/1,288,465.30 = 816,486.48/x - Step 3: Cross multiply
864,775.44x = 1,288,465.30 × 816,486.48 - Step 4: Simplify right side
864,775.44x = 1,052,014,497,399.14 - Step 5: Solve for x
x = 1,052,014,497,399.14/864,775.44 - Step 6: Final answer
x = 1,216,517.55
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.