Finding the Fourth Proportional to 1,222,559.28, 1,687,047.18 and 678,652.08
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Solution
The fourth proportional to 1,222,559.28, 1,687,047.18 and 678,652.08 is: 936,492.89
Step by Step Solution
- Step 1: Write the proportion equation
1,222,559.28 : 1,687,047.18 = 678,652.08 : x - Step 2: Convert to fraction form
1,222,559.28/1,687,047.18 = 678,652.08/x - Step 3: Cross multiply
1,222,559.28x = 1,687,047.18 × 678,652.08 - Step 4: Simplify right side
1,222,559.28x = 1,144,918,077,765.13 - Step 5: Solve for x
x = 1,144,918,077,765.13/1,222,559.28 - Step 6: Final answer
x = 936,492.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.