Finding the Fourth Proportional to 1,246,391.21, 1,869,838.32 and 393,596.03
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Solution
The fourth proportional to 1,246,391.21, 1,869,838.32 and 393,596.03 is: 590,473.47
Step by Step Solution
- Step 1: Write the proportion equation
1,246,391.21 : 1,869,838.32 = 393,596.03 : x - Step 2: Convert to fraction form
1,246,391.21/1,869,838.32 = 393,596.03/x - Step 3: Cross multiply
1,246,391.21x = 1,869,838.32 × 393,596.03 - Step 4: Simplify right side
1,246,391.21x = 735,960,939,493.87 - Step 5: Solve for x
x = 735,960,939,493.87/1,246,391.21 - Step 6: Final answer
x = 590,473.47
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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.