Finding the Fourth Proportional to 1,620,963.23, 2,431,565.12 and 483,635.75
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Solution
The fourth proportional to 1,620,963.23, 2,431,565.12 and 483,635.75 is: 725,489.51
Step by Step Solution
- Step 1: Write the proportion equation
1,620,963.23 : 2,431,565.12 = 483,635.75 : x - Step 2: Convert to fraction form
1,620,963.23/2,431,565.12 = 483,635.75/x - Step 3: Cross multiply
1,620,963.23x = 2,431,565.12 × 483,635.75 - Step 4: Simplify right side
1,620,963.23x = 1,175,991,809,536.30 - Step 5: Solve for x
x = 1,175,991,809,536.30/1,620,963.23 - Step 6: Final answer
x = 725,489.51
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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.