Finding the Fourth Proportional to 2,619,987.99, 3,929,981.97 and 726,729.42
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Solution
The fourth proportional to 2,619,987.99, 3,929,981.97 and 726,729.42 is: 1,090,094.13
Step by Step Solution
- Step 1: Write the proportion equation
2,619,987.99 : 3,929,981.97 = 726,729.42 : x - Step 2: Convert to fraction form
2,619,987.99/3,929,981.97 = 726,729.42/x - Step 3: Cross multiply
2,619,987.99x = 3,929,981.97 × 726,729.42 - Step 4: Simplify right side
2,619,987.99x = 2,856,033,535,131.23 - Step 5: Solve for x
x = 2,856,033,535,131.23/2,619,987.99 - Step 6: Final answer
x = 1,090,094.13
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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.