Finding the Fourth Proportional to 920,643.89, 1,270,527.99 and 512,745.71
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Solution
The fourth proportional to 920,643.89, 1,270,527.99 and 512,745.71 is: 707,611.03
Step by Step Solution
- Step 1: Write the proportion equation
920,643.89 : 1,270,527.99 = 512,745.71 : x - Step 2: Convert to fraction form
920,643.89/1,270,527.99 = 512,745.71/x - Step 3: Cross multiply
920,643.89x = 1,270,527.99 × 512,745.71 - Step 4: Simplify right side
920,643.89x = 651,457,769,954.78 - Step 5: Solve for x
x = 651,457,769,954.78/920,643.89 - Step 6: Final answer
x = 707,611.03
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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.