Finding the Fourth Proportional to 1,129,880.92, 1,559,266.12 and 664,767.26
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Solution
The fourth proportional to 1,129,880.92, 1,559,266.12 and 664,767.26 is: 917,396.73
Step by Step Solution
- Step 1: Write the proportion equation
1,129,880.92 : 1,559,266.12 = 664,767.26 : x - Step 2: Convert to fraction form
1,129,880.92/1,559,266.12 = 664,767.26/x - Step 3: Cross multiply
1,129,880.92x = 1,559,266.12 × 664,767.26 - Step 4: Simplify right side
1,129,880.92x = 1,036,549,066,203.23 - Step 5: Solve for x
x = 1,036,549,066,203.23/1,129,880.92 - Step 6: Final answer
x = 917,396.73
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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.