Finding the Fourth Proportional to 880,777.40, 1,215,432.11 and 498,806.92
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Solution
The fourth proportional to 880,777.40, 1,215,432.11 and 498,806.92 is: 688,330.50
Step by Step Solution
- Step 1: Write the proportion equation
880,777.40 : 1,215,432.11 = 498,806.92 : x - Step 2: Convert to fraction form
880,777.40/1,215,432.11 = 498,806.92/x - Step 3: Cross multiply
880,777.40x = 1,215,432.11 × 498,806.92 - Step 4: Simplify right side
880,777.40x = 606,265,947,258.20 - Step 5: Solve for x
x = 606,265,947,258.20/880,777.40 - Step 6: Final answer
x = 688,330.50
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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.