Finding the Fourth Proportional to 1,818,385.60, 2,727,319.20 and 620,363.20
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Solution
The fourth proportional to 1,818,385.60, 2,727,319.20 and 620,363.20 is: 930,456.37
Step by Step Solution
- Step 1: Write the proportion equation
1,818,385.60 : 2,727,319.20 = 620,363.20 : x - Step 2: Convert to fraction form
1,818,385.60/2,727,319.20 = 620,363.20/x - Step 3: Cross multiply
1,818,385.60x = 2,727,319.20 × 620,363.20 - Step 4: Simplify right side
1,818,385.60x = 1,691,928,466,333.44 - Step 5: Solve for x
x = 1,691,928,466,333.44/1,818,385.60 - Step 6: Final answer
x = 930,456.37
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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.