Finding the Fourth Proportional to 1,387,872.68, 2,081,809.74 and 390,600.68
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Solution
The fourth proportional to 1,387,872.68, 2,081,809.74 and 390,600.68 is: 585,901.22
Step by Step Solution
- Step 1: Write the proportion equation
1,387,872.68 : 2,081,809.74 = 390,600.68 : x - Step 2: Convert to fraction form
1,387,872.68/2,081,809.74 = 390,600.68/x - Step 3: Cross multiply
1,387,872.68x = 2,081,809.74 × 390,600.68 - Step 4: Simplify right side
1,387,872.68x = 813,156,300,074.62 - Step 5: Solve for x
x = 813,156,300,074.62/1,387,872.68 - Step 6: Final answer
x = 585,901.22
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.