Finding the Fourth Proportional to 449,326.93, 619,332.92 and 318,549.19
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Solution
The fourth proportional to 449,326.93, 619,332.92 and 318,549.19 is: 439,074.50
Step by Step Solution
- Step 1: Write the proportion equation
449,326.93 : 619,332.92 = 318,549.19 : x - Step 2: Convert to fraction form
449,326.93/619,332.92 = 318,549.19/x - Step 3: Cross multiply
449,326.93x = 619,332.92 × 318,549.19 - Step 4: Simplify right side
449,326.93x = 197,287,995,316.92 - Step 5: Solve for x
x = 197,287,995,316.92/449,326.93 - Step 6: Final answer
x = 439,074.50
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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.