Finding the Fourth Proportional to 2,782,023.60, 4,171,998.60 and 1,938,068.40
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Solution
The fourth proportional to 2,782,023.60, 4,171,998.60 and 1,938,068.40 is: 2,906,380.32
Step by Step Solution
- Step 1: Write the proportion equation
2,782,023.60 : 4,171,998.60 = 1,938,068.40 : x - Step 2: Convert to fraction form
2,782,023.60/4,171,998.60 = 1,938,068.40/x - Step 3: Cross multiply
2,782,023.60x = 4,171,998.60 × 1,938,068.40 - Step 4: Simplify right side
2,782,023.60x = 8,085,618,651,504.24 - Step 5: Solve for x
x = 8,085,618,651,504.24/2,782,023.60 - Step 6: Final answer
x = 2,906,380.32
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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.