Finding the Fourth Proportional to 781,363.20, 1,170,201.60 and 482,764.80
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Solution
The fourth proportional to 781,363.20, 1,170,201.60 and 482,764.80 is: 723,008.38
Step by Step Solution
- Step 1: Write the proportion equation
781,363.20 : 1,170,201.60 = 482,764.80 : x - Step 2: Convert to fraction form
781,363.20/1,170,201.60 = 482,764.80/x - Step 3: Cross multiply
781,363.20x = 1,170,201.60 × 482,764.80 - Step 4: Simplify right side
781,363.20x = 564,932,141,383.68 - Step 5: Solve for x
x = 564,932,141,383.68/781,363.20 - Step 6: Final answer
x = 723,008.38
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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.