Finding the Fourth Proportional to 2,189,895.20, 3,285,457.20 and 1,068,000.80
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Solution
The fourth proportional to 2,189,895.20, 3,285,457.20 and 1,068,000.80 is: 1,602,300.84
Step by Step Solution
- Step 1: Write the proportion equation
2,189,895.20 : 3,285,457.20 = 1,068,000.80 : x - Step 2: Convert to fraction form
2,189,895.20/3,285,457.20 = 1,068,000.80/x - Step 3: Cross multiply
2,189,895.20x = 3,285,457.20 × 1,068,000.80 - Step 4: Simplify right side
2,189,895.20x = 3,508,870,917,965.76 - Step 5: Solve for x
x = 3,508,870,917,965.76/2,189,895.20 - Step 6: Final answer
x = 1,602,300.84
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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.