Finding the Fourth Proportional to 1,993,248.12, 2,990,308.21 and 645,546.96
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Solution
The fourth proportional to 1,993,248.12, 2,990,308.21 and 645,546.96 is: 968,461.65
Step by Step Solution
- Step 1: Write the proportion equation
1,993,248.12 : 2,990,308.21 = 645,546.96 : x - Step 2: Convert to fraction form
1,993,248.12/2,990,308.21 = 645,546.96/x - Step 3: Cross multiply
1,993,248.12x = 2,990,308.21 × 645,546.96 - Step 4: Simplify right side
1,993,248.12x = 1,930,384,362,045.02 - Step 5: Solve for x
x = 1,930,384,362,045.02/1,993,248.12 - Step 6: Final answer
x = 968,461.65
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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.