Finding the Fourth Proportional to 859,076.10, 1,288,614.15 and 260,129.70
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Solution
The fourth proportional to 859,076.10, 1,288,614.15 and 260,129.70 is: 390,194.55
Step by Step Solution
- Step 1: Write the proportion equation
859,076.10 : 1,288,614.15 = 260,129.70 : x - Step 2: Convert to fraction form
859,076.10/1,288,614.15 = 260,129.70/x - Step 3: Cross multiply
859,076.10x = 1,288,614.15 × 260,129.70 - Step 4: Simplify right side
859,076.10x = 335,206,812,255.26 - Step 5: Solve for x
x = 335,206,812,255.26/859,076.10 - Step 6: Final answer
x = 390,194.55
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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.