Finding the Fourth Proportional to 1,385,313.80, 2,078,282.34 and 486,817.65
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Solution
The fourth proportional to 1,385,313.80, 2,078,282.34 and 486,817.65 is: 730,335.99
Step by Step Solution
- Step 1: Write the proportion equation
1,385,313.80 : 2,078,282.34 = 486,817.65 : x - Step 2: Convert to fraction form
1,385,313.80/2,078,282.34 = 486,817.65/x - Step 3: Cross multiply
1,385,313.80x = 2,078,282.34 × 486,817.65 - Step 4: Simplify right side
1,385,313.80x = 1,011,744,524,795.30 - Step 5: Solve for x
x = 1,011,744,524,795.30/1,385,313.80 - Step 6: Final answer
x = 730,335.99
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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.