Finding the Fourth Proportional to 565,712.28, 780,682.92 and 339,430.68
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Solution
The fourth proportional to 565,712.28, 780,682.92 and 339,430.68 is: 468,414.32
Step by Step Solution
- Step 1: Write the proportion equation
565,712.28 : 780,682.92 = 339,430.68 : x - Step 2: Convert to fraction form
565,712.28/780,682.92 = 339,430.68/x - Step 3: Cross multiply
565,712.28x = 780,682.92 × 339,430.68 - Step 4: Simplify right side
565,712.28x = 264,987,734,399.99 - Step 5: Solve for x
x = 264,987,734,399.99/565,712.28 - Step 6: Final answer
x = 468,414.32
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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.