Finding the Fourth Proportional to 978,186.77, 1,349,975.99 and 542,647.11
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Solution
The fourth proportional to 978,186.77, 1,349,975.99 and 542,647.11 is: 748,896.42
Step by Step Solution
- Step 1: Write the proportion equation
978,186.77 : 1,349,975.99 = 542,647.11 : x - Step 2: Convert to fraction form
978,186.77/1,349,975.99 = 542,647.11/x - Step 3: Cross multiply
978,186.77x = 1,349,975.99 × 542,647.11 - Step 4: Simplify right side
978,186.77x = 732,560,570,899.51 - Step 5: Solve for x
x = 732,560,570,899.51/978,186.77 - Step 6: Final answer
x = 748,896.42
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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.