Finding the Fourth Proportional to 691,101,046.70, 1,036,651,570.05 and 645,751,414.70
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Solution
The fourth proportional to 691,101,046.70, 1,036,651,570.05 and 645,751,414.70 is: 968,627,122.05
Step by Step Solution
- Step 1: Write the proportion equation
691,101,046.70 : 1,036,651,570.05 = 645,751,414.70 : x - Step 2: Convert to fraction form
691,101,046.70/1,036,651,570.05 = 645,751,414.70/x - Step 3: Cross multiply
691,101,046.70x = 1,036,651,570.05 × 645,751,414.70 - Step 4: Simplify right side
691,101,046.70x = 669,419,217,910,763,648 - Step 5: Solve for x
x = 669,419,217,910,763,648/691,101,046.70 - Step 6: Final answer
x = 968,627,122.05
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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.