Finding the Fourth Proportional to 1,379,754.99, 2,069,965.71 and 433,125.72
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Solution
The fourth proportional to 1,379,754.99, 2,069,965.71 and 433,125.72 is: 649,793.18
Step by Step Solution
- Step 1: Write the proportion equation
1,379,754.99 : 2,069,965.71 = 433,125.72 : x - Step 2: Convert to fraction form
1,379,754.99/2,069,965.71 = 433,125.72/x - Step 3: Cross multiply
1,379,754.99x = 2,069,965.71 × 433,125.72 - Step 4: Simplify right side
1,379,754.99x = 896,555,388,519.06 - Step 5: Solve for x
x = 896,555,388,519.06/1,379,754.99 - Step 6: Final answer
x = 649,793.18
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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.