Finding the Fourth Proportional to 1,966,228.40, 2,949,439.80 and 1,021,444.40
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Solution
The fourth proportional to 1,966,228.40, 2,949,439.80 and 1,021,444.40 is: 1,532,217.09
Step by Step Solution
- Step 1: Write the proportion equation
1,966,228.40 : 2,949,439.80 = 1,021,444.40 : x - Step 2: Convert to fraction form
1,966,228.40/2,949,439.80 = 1,021,444.40/x - Step 3: Cross multiply
1,966,228.40x = 2,949,439.80 × 1,021,444.40 - Step 4: Simplify right side
1,966,228.40x = 3,012,688,766,847.12 - Step 5: Solve for x
x = 3,012,688,766,847.12/1,966,228.40 - Step 6: Final answer
x = 1,532,217.09
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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.