Finding the Fourth Proportional to 1,062,178.25, 1,593,931.68 and 431,092.05
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Solution
The fourth proportional to 1,062,178.25, 1,593,931.68 and 431,092.05 is: 646,907.69
Step by Step Solution
- Step 1: Write the proportion equation
1,062,178.25 : 1,593,931.68 = 431,092.05 : x - Step 2: Convert to fraction form
1,062,178.25/1,593,931.68 = 431,092.05/x - Step 3: Cross multiply
1,062,178.25x = 1,593,931.68 × 431,092.05 - Step 4: Simplify right side
1,062,178.25x = 687,131,275,491.14 - Step 5: Solve for x
x = 687,131,275,491.14/1,062,178.25 - Step 6: Final answer
x = 646,907.69
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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.