Finding the Fourth Proportional to 514,107.20, 709,367.12 and 323,009.88
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Solution
The fourth proportional to 514,107.20, 709,367.12 and 323,009.88 is: 445,690.28
Step by Step Solution
- Step 1: Write the proportion equation
514,107.20 : 709,367.12 = 323,009.88 : x - Step 2: Convert to fraction form
514,107.20/709,367.12 = 323,009.88/x - Step 3: Cross multiply
514,107.20x = 709,367.12 × 323,009.88 - Step 4: Simplify right side
514,107.20x = 229,132,585,243.26 - Step 5: Solve for x
x = 229,132,585,243.26/514,107.20 - Step 6: Final answer
x = 445,690.28
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1.5x scale
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.