Finding the Fourth Proportional to 772,364.84, 1,065,926.62 and 428,308.68
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Solution
The fourth proportional to 772,364.84, 1,065,926.62 and 428,308.68 is: 591,100.99
Step by Step Solution
- Step 1: Write the proportion equation
772,364.84 : 1,065,926.62 = 428,308.68 : x - Step 2: Convert to fraction form
772,364.84/1,065,926.62 = 428,308.68/x - Step 3: Cross multiply
772,364.84x = 1,065,926.62 × 428,308.68 - Step 4: Simplify right side
772,364.84x = 456,545,619,716.60 - Step 5: Solve for x
x = 456,545,619,716.60/772,364.84 - Step 6: Final answer
x = 591,100.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.