Finding the Fourth Proportional to 1,326,236.78, 1,987,938.74 and 756,391.02
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Solution
The fourth proportional to 1,326,236.78, 1,987,938.74 and 756,391.02 is: 1,133,778.70
Step by Step Solution
- Step 1: Write the proportion equation
1,326,236.78 : 1,987,938.74 = 756,391.02 : x - Step 2: Convert to fraction form
1,326,236.78/1,987,938.74 = 756,391.02/x - Step 3: Cross multiply
1,326,236.78x = 1,987,938.74 × 756,391.02 - Step 4: Simplify right side
1,326,236.78x = 1,503,659,011,246.11 - Step 5: Solve for x
x = 1,503,659,011,246.11/1,326,236.78 - Step 6: Final answer
x = 1,133,778.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.