Finding the Fourth Proportional to 1,994,139.68, 2,990,582.09 and 645,989.49
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Solution
The fourth proportional to 1,994,139.68, 2,990,582.09 and 645,989.49 is: 968,780.98
Step by Step Solution
- Step 1: Write the proportion equation
1,994,139.68 : 2,990,582.09 = 645,989.49 : x - Step 2: Convert to fraction form
1,994,139.68/2,990,582.09 = 645,989.49/x - Step 3: Cross multiply
1,994,139.68x = 2,990,582.09 × 645,989.49 - Step 4: Simplify right side
1,994,139.68x = 1,931,884,595,892.29 - Step 5: Solve for x
x = 1,931,884,595,892.29/1,994,139.68 - Step 6: Final answer
x = 968,780.98
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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.