Finding the Fourth Proportional to 1,121,432.67, 1,682,067.66 and 438,191.09
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Solution
The fourth proportional to 1,121,432.67, 1,682,067.66 and 438,191.09 is: 657,254.85
Step by Step Solution
- Step 1: Write the proportion equation
1,121,432.67 : 1,682,067.66 = 438,191.09 : x - Step 2: Convert to fraction form
1,121,432.67/1,682,067.66 = 438,191.09/x - Step 3: Cross multiply
1,121,432.67x = 1,682,067.66 × 438,191.09 - Step 4: Simplify right side
1,121,432.67x = 737,067,061,389.15 - Step 5: Solve for x
x = 737,067,061,389.15/1,121,432.67 - Step 6: Final answer
x = 657,254.85
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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.