Finding the Fourth Proportional to 872,020.99, 1,306,813.60 and 422,622.56
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Solution
The fourth proportional to 872,020.99, 1,306,813.60 and 422,622.56 is: 633,343.60
Step by Step Solution
- Step 1: Write the proportion equation
872,020.99 : 1,306,813.60 = 422,622.56 : x - Step 2: Convert to fraction form
872,020.99/1,306,813.60 = 422,622.56/x - Step 3: Cross multiply
872,020.99x = 1,306,813.60 × 422,622.56 - Step 4: Simplify right side
872,020.99x = 552,288,912,870.13 - Step 5: Solve for x
x = 552,288,912,870.13/872,020.99 - Step 6: Final answer
x = 633,343.60
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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.