Finding the Fourth Proportional to 1,750,361.70, 2,625,542.55 and 420,665.70
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Solution
The fourth proportional to 1,750,361.70, 2,625,542.55 and 420,665.70 is: 630,998.55
Step by Step Solution
- Step 1: Write the proportion equation
1,750,361.70 : 2,625,542.55 = 420,665.70 : x - Step 2: Convert to fraction form
1,750,361.70/2,625,542.55 = 420,665.70/x - Step 3: Cross multiply
1,750,361.70x = 2,625,542.55 × 420,665.70 - Step 4: Simplify right side
1,750,361.70x = 1,104,475,694,675.53 - Step 5: Solve for x
x = 1,104,475,694,675.53/1,750,361.70 - Step 6: Final answer
x = 630,998.55
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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.