Finding the Fourth Proportional to 1,686,888.81, 2,325,485.31 and 1,202,613.21
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Solution
The fourth proportional to 1,686,888.81, 2,325,485.31 and 1,202,613.21 is: 1,657,880.08
Step by Step Solution
- Step 1: Write the proportion equation
1,686,888.81 : 2,325,485.31 = 1,202,613.21 : x - Step 2: Convert to fraction form
1,686,888.81/2,325,485.31 = 1,202,613.21/x - Step 3: Cross multiply
1,686,888.81x = 2,325,485.31 × 1,202,613.21 - Step 4: Simplify right side
1,686,888.81x = 2,796,659,353,466.95 - Step 5: Solve for x
x = 2,796,659,353,466.95/1,686,888.81 - Step 6: Final answer
x = 1,657,880.08
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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.