Finding the Fourth Proportional to 772,228.62, 1,065,631.95 and 449,991.18
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Solution
The fourth proportional to 772,228.62, 1,065,631.95 and 449,991.18 is: 620,962.45
Step by Step Solution
- Step 1: Write the proportion equation
772,228.62 : 1,065,631.95 = 449,991.18 : x - Step 2: Convert to fraction form
772,228.62/1,065,631.95 = 449,991.18/x - Step 3: Cross multiply
772,228.62x = 1,065,631.95 × 449,991.18 - Step 4: Simplify right side
772,228.62x = 479,524,978,626.20 - Step 5: Solve for x
x = 479,524,978,626.20/772,228.62 - Step 6: Final answer
x = 620,962.45
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.