Finding the Fourth Proportional to 775,399.28, 1,069,988.99 and 431,235.88
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Solution
The fourth proportional to 775,399.28, 1,069,988.99 and 431,235.88 is: 595,071.02
Step by Step Solution
- Step 1: Write the proportion equation
775,399.28 : 1,069,988.99 = 431,235.88 : x - Step 2: Convert to fraction form
775,399.28/1,069,988.99 = 431,235.88/x - Step 3: Cross multiply
775,399.28x = 1,069,988.99 × 431,235.88 - Step 4: Simplify right side
775,399.28x = 461,417,638,861.81 - Step 5: Solve for x
x = 461,417,638,861.81/775,399.28 - Step 6: Final answer
x = 595,071.02
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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.