Finding the Fourth Proportional to 777,367.28, 1,065,774.46 and 763,197.68
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Solution
The fourth proportional to 777,367.28, 1,065,774.46 and 763,197.68 is: 1,046,347.87
Step by Step Solution
- Step 1: Write the proportion equation
777,367.28 : 1,065,774.46 = 763,197.68 : x - Step 2: Convert to fraction form
777,367.28/1,065,774.46 = 763,197.68/x - Step 3: Cross multiply
777,367.28x = 1,065,774.46 × 763,197.68 - Step 4: Simplify right side
777,367.28x = 813,396,595,275.25 - Step 5: Solve for x
x = 813,396,595,275.25/777,367.28 - Step 6: Final answer
x = 1,046,347.87
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.