Finding the Fourth Proportional to 2,819,617.80, 3,890,967.66 and 1,530,430.44
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Solution
The fourth proportional to 2,819,617.80, 3,890,967.66 and 1,530,430.44 is: 2,111,937.07
Step by Step Solution
- Step 1: Write the proportion equation
2,819,617.80 : 3,890,967.66 = 1,530,430.44 : x - Step 2: Convert to fraction form
2,819,617.80/3,890,967.66 = 1,530,430.44/x - Step 3: Cross multiply
2,819,617.80x = 3,890,967.66 × 1,530,430.44 - Step 4: Simplify right side
2,819,617.80x = 5,954,855,347,919.57 - Step 5: Solve for x
x = 5,954,855,347,919.57/2,819,617.80 - Step 6: Final answer
x = 2,111,937.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.