Finding the Fourth Proportional to 1,605,664.20, 2,215,847.16 and 880,468.80
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Solution
The fourth proportional to 1,605,664.20, 2,215,847.16 and 880,468.80 is: 1,215,063.70
Step by Step Solution
- Step 1: Write the proportion equation
1,605,664.20 : 2,215,847.16 = 880,468.80 : x - Step 2: Convert to fraction form
1,605,664.20/2,215,847.16 = 880,468.80/x - Step 3: Cross multiply
1,605,664.20x = 2,215,847.16 × 880,468.80 - Step 4: Simplify right side
1,605,664.20x = 1,950,984,289,948.61 - Step 5: Solve for x
x = 1,950,984,289,948.61/1,605,664.20 - Step 6: Final answer
x = 1,215,063.70
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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.