Finding the Fourth Proportional to 1,155,991.20, 1,733,556.63 and 397,619.79
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Solution
The fourth proportional to 1,155,991.20, 1,733,556.63 and 397,619.79 is: 596,281.72
Step by Step Solution
- Step 1: Write the proportion equation
1,155,991.20 : 1,733,556.63 = 397,619.79 : x - Step 2: Convert to fraction form
1,155,991.20/1,733,556.63 = 397,619.79/x - Step 3: Cross multiply
1,155,991.20x = 1,733,556.63 × 397,619.79 - Step 4: Simplify right side
1,155,991.20x = 689,296,423,173.71 - Step 5: Solve for x
x = 689,296,423,173.71/1,155,991.20 - Step 6: Final answer
x = 596,281.72
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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.