Finding the Fourth Proportional to 434,399.99, 599,488.22 and 243,406.31
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Solution
The fourth proportional to 434,399.99, 599,488.22 and 243,406.31 is: 335,909.80
Step by Step Solution
- Step 1: Write the proportion equation
434,399.99 : 599,488.22 = 243,406.31 : x - Step 2: Convert to fraction form
434,399.99/599,488.22 = 243,406.31/x - Step 3: Cross multiply
434,399.99x = 599,488.22 × 243,406.31 - Step 4: Simplify right side
434,399.99x = 145,919,215,800.36 - Step 5: Solve for x
x = 145,919,215,800.36/434,399.99 - Step 6: Final answer
x = 335,909.80
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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.