Finding the Fourth Proportional to 3,158,956.36, 4,359,358.95 and 1,782,287.68
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Solution
The fourth proportional to 3,158,956.36, 4,359,358.95 and 1,782,287.68 is: 2,459,556.53
Step by Step Solution
- Step 1: Write the proportion equation
3,158,956.36 : 4,359,358.95 = 1,782,287.68 : x - Step 2: Convert to fraction form
3,158,956.36/4,359,358.95 = 1,782,287.68/x - Step 3: Cross multiply
3,158,956.36x = 4,359,358.95 × 1,782,287.68 - Step 4: Simplify right side
3,158,956.36x = 7,769,631,749,282.74 - Step 5: Solve for x
x = 7,769,631,749,282.74/3,158,956.36 - Step 6: Final answer
x = 2,459,556.53
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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.