Finding the Fourth Proportional to 1,621,639.36, 2,432,720.36 and 499,707.84
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Solution
The fourth proportional to 1,621,639.36, 2,432,720.36 and 499,707.84 is: 749,642.29
Step by Step Solution
- Step 1: Write the proportion equation
1,621,639.36 : 2,432,720.36 = 499,707.84 : x - Step 2: Convert to fraction form
1,621,639.36/2,432,720.36 = 499,707.84/x - Step 3: Cross multiply
1,621,639.36x = 2,432,720.36 × 499,707.84 - Step 4: Simplify right side
1,621,639.36x = 1,215,649,436,419.62 - Step 5: Solve for x
x = 1,215,649,436,419.62/1,621,639.36 - Step 6: Final answer
x = 749,642.29
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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.