Finding the Fourth Proportional to 1,179,193.12, 1,768,354.48 and 420,831.68
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Solution
The fourth proportional to 1,179,193.12, 1,768,354.48 and 420,831.68 is: 631,092.21
Step by Step Solution
- Step 1: Write the proportion equation
1,179,193.12 : 1,768,354.48 = 420,831.68 : x - Step 2: Convert to fraction form
1,179,193.12/1,768,354.48 = 420,831.68/x - Step 3: Cross multiply
1,179,193.12x = 1,768,354.48 × 420,831.68 - Step 4: Simplify right side
1,179,193.12x = 744,179,586,653.93 - Step 5: Solve for x
x = 744,179,586,653.93/1,179,193.12 - Step 6: Final answer
x = 631,092.21
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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.