Finding the Fourth Proportional to 1,192,475.79, 1,787,631.12 and 433,780.79
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Solution
The fourth proportional to 1,192,475.79, 1,787,631.12 and 433,780.79 is: 650,277.38
Step by Step Solution
- Step 1: Write the proportion equation
1,192,475.79 : 1,787,631.12 = 433,780.79 : x - Step 2: Convert to fraction form
1,192,475.79/1,787,631.12 = 433,780.79/x - Step 3: Cross multiply
1,192,475.79x = 1,787,631.12 × 433,780.79 - Step 4: Simplify right side
1,192,475.79x = 775,440,030,524.03 - Step 5: Solve for x
x = 775,440,030,524.03/1,192,475.79 - Step 6: Final answer
x = 650,277.38
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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.