Finding the Fourth Proportional to 1,138,208.68, 1,570,727.46 and 628,906.60
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Solution
The fourth proportional to 1,138,208.68, 1,570,727.46 and 628,906.60 is: 867,890.82
Step by Step Solution
- Step 1: Write the proportion equation
1,138,208.68 : 1,570,727.46 = 628,906.60 : x - Step 2: Convert to fraction form
1,138,208.68/1,570,727.46 = 628,906.60/x - Step 3: Cross multiply
1,138,208.68x = 1,570,727.46 × 628,906.60 - Step 4: Simplify right side
1,138,208.68x = 987,840,866,395.24 - Step 5: Solve for x
x = 987,840,866,395.24/1,138,208.68 - Step 6: Final answer
x = 867,890.82
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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.