Finding the Fourth Proportional to 1,332,575.84, 1,838,949.20 and 720,729.32
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Solution
The fourth proportional to 1,332,575.84, 1,838,949.20 and 720,729.32 is: 994,603.51
Step by Step Solution
- Step 1: Write the proportion equation
1,332,575.84 : 1,838,949.20 = 720,729.32 : x - Step 2: Convert to fraction form
1,332,575.84/1,838,949.20 = 720,729.32/x - Step 3: Cross multiply
1,332,575.84x = 1,838,949.20 × 720,729.32 - Step 4: Simplify right side
1,332,575.84x = 1,325,384,606,430.54 - Step 5: Solve for x
x = 1,325,384,606,430.54/1,332,575.84 - Step 6: Final answer
x = 994,603.51
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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.