Finding the Fourth Proportional to 1,128,769.40, 1,693,412.67 and 489,180.52
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Solution
The fourth proportional to 1,128,769.40, 1,693,412.67 and 489,180.52 is: 733,882.83
Step by Step Solution
- Step 1: Write the proportion equation
1,128,769.40 : 1,693,412.67 = 489,180.52 : x - Step 2: Convert to fraction form
1,128,769.40/1,693,412.67 = 489,180.52/x - Step 3: Cross multiply
1,128,769.40x = 1,693,412.67 × 489,180.52 - Step 4: Simplify right side
1,128,769.40x = 828,384,482,018.13 - Step 5: Solve for x
x = 828,384,482,018.13/1,128,769.40 - Step 6: Final answer
x = 733,882.83
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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.