Finding the Fourth Proportional to 642,023.70, 963,035.55 and 327,095.70
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Solution
The fourth proportional to 642,023.70, 963,035.55 and 327,095.70 is: 490,643.55
Step by Step Solution
- Step 1: Write the proportion equation
642,023.70 : 963,035.55 = 327,095.70 : x - Step 2: Convert to fraction form
642,023.70/963,035.55 = 327,095.70/x - Step 3: Cross multiply
642,023.70x = 963,035.55 × 327,095.70 - Step 4: Simplify right side
642,023.70x = 315,004,787,352.14 - Step 5: Solve for x
x = 315,004,787,352.14/642,023.70 - Step 6: Final answer
x = 490,643.55
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1.5x scale
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.