Finding the Fourth Proportional to 1,425,403.70, 1,965,480.84 and 908,338.50
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Solution
The fourth proportional to 1,425,403.70, 1,965,480.84 and 908,338.50 is: 1,252,502.65
Step by Step Solution
- Step 1: Write the proportion equation
1,425,403.70 : 1,965,480.84 = 908,338.50 : x - Step 2: Convert to fraction form
1,425,403.70/1,965,480.84 = 908,338.50/x - Step 3: Cross multiply
1,425,403.70x = 1,965,480.84 × 908,338.50 - Step 4: Simplify right side
1,425,403.70x = 1,785,321,917,984.34 - Step 5: Solve for x
x = 1,785,321,917,984.34/1,425,403.70 - Step 6: Final answer
x = 1,252,502.65
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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.