Finding the Fourth Proportional to 980,436.42, 1,352,792.37 and 572,353.05
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Solution
The fourth proportional to 980,436.42, 1,352,792.37 and 572,353.05 is: 789,724.68
Step by Step Solution
- Step 1: Write the proportion equation
980,436.42 : 1,352,792.37 = 572,353.05 : x - Step 2: Convert to fraction form
980,436.42/1,352,792.37 = 572,353.05/x - Step 3: Cross multiply
980,436.42x = 1,352,792.37 × 572,353.05 - Step 4: Simplify right side
980,436.42x = 774,274,838,986.23 - Step 5: Solve for x
x = 774,274,838,986.23/980,436.42 - Step 6: Final answer
x = 789,724.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.