Finding the Fourth Proportional to 1,690,944.40, 2,332,444.42 and 1,110,197.49
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Solution
The fourth proportional to 1,690,944.40, 2,332,444.42 and 1,110,197.49 is: 1,531,377.34
Step by Step Solution
- Step 1: Write the proportion equation
1,690,944.40 : 2,332,444.42 = 1,110,197.49 : x - Step 2: Convert to fraction form
1,690,944.40/2,332,444.42 = 1,110,197.49/x - Step 3: Cross multiply
1,690,944.40x = 2,332,444.42 × 1,110,197.49 - Step 4: Simplify right side
1,690,944.40x = 2,589,473,940,648.51 - Step 5: Solve for x
x = 2,589,473,940,648.51/1,690,944.40 - Step 6: Final answer
x = 1,531,377.34
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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.