Finding the Fourth Proportional to 3,581,721.80, 5,372,582.70 and 1,217,817.80
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Solution
The fourth proportional to 3,581,721.80, 5,372,582.70 and 1,217,817.80 is: 1,826,726.70
Step by Step Solution
- Step 1: Write the proportion equation
3,581,721.80 : 5,372,582.70 = 1,217,817.80 : x - Step 2: Convert to fraction form
3,581,721.80/5,372,582.70 = 1,217,817.80/x - Step 3: Cross multiply
3,581,721.80x = 5,372,582.70 × 1,217,817.80 - Step 4: Simplify right side
3,581,721.80x = 6,542,826,844,032.06 - Step 5: Solve for x
x = 6,542,826,844,032.06/3,581,721.80 - Step 6: Final answer
x = 1,826,726.70
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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.