Finding the Fourth Proportional to 777,022.80, 1,165,534.20 and 461,317.20
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Solution
The fourth proportional to 777,022.80, 1,165,534.20 and 461,317.20 is: 691,975.80
Step by Step Solution
- Step 1: Write the proportion equation
777,022.80 : 1,165,534.20 = 461,317.20 : x - Step 2: Convert to fraction form
777,022.80/1,165,534.20 = 461,317.20/x - Step 3: Cross multiply
777,022.80x = 1,165,534.20 × 461,317.20 - Step 4: Simplify right side
777,022.80x = 537,680,973,648.24 - Step 5: Solve for x
x = 537,680,973,648.24/777,022.80 - Step 6: Final answer
x = 691,975.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.