Finding the Fourth Proportional to 813,777.62, 1,122,876.60 and 542,251.04
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Solution
The fourth proportional to 813,777.62, 1,122,876.60 and 542,251.04 is: 748,215.47
Step by Step Solution
- Step 1: Write the proportion equation
813,777.62 : 1,122,876.60 = 542,251.04 : x - Step 2: Convert to fraction form
813,777.62/1,122,876.60 = 542,251.04/x - Step 3: Cross multiply
813,777.62x = 1,122,876.60 × 542,251.04 - Step 4: Simplify right side
813,777.62x = 608,880,998,527.28 - Step 5: Solve for x
x = 608,880,998,527.28/813,777.62 - Step 6: Final answer
x = 748,215.47
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1.5x scale
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.