Finding the Fourth Proportional to 808,748.80, 1,214,121.60 and 509,228.80
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Solution
The fourth proportional to 808,748.80, 1,214,121.60 and 509,228.80 is: 764,471.84
Step by Step Solution
- Step 1: Write the proportion equation
808,748.80 : 1,214,121.60 = 509,228.80 : x - Step 2: Convert to fraction form
808,748.80/1,214,121.60 = 509,228.80/x - Step 3: Cross multiply
808,748.80x = 1,214,121.60 × 509,228.80 - Step 4: Simplify right side
808,748.80x = 618,265,685,422.08 - Step 5: Solve for x
x = 618,265,685,422.08/808,748.80 - Step 6: Final answer
x = 764,471.84
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.