Finding the Fourth Proportional to 989,489.75, 1,365,496.28 and 559,760.75
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Solution
The fourth proportional to 989,489.75, 1,365,496.28 and 559,760.75 is: 772,470.07
Step by Step Solution
- Step 1: Write the proportion equation
989,489.75 : 1,365,496.28 = 559,760.75 : x - Step 2: Convert to fraction form
989,489.75/1,365,496.28 = 559,760.75/x - Step 3: Cross multiply
989,489.75x = 1,365,496.28 × 559,760.75 - Step 4: Simplify right side
989,489.75x = 764,351,219,016.21 - Step 5: Solve for x
x = 764,351,219,016.21/989,489.75 - Step 6: Final answer
x = 772,470.07
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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.