Finding the Fourth Proportional to 449,609.18, 620,453.40 and 245,655.74
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Solution
The fourth proportional to 449,609.18, 620,453.40 and 245,655.74 is: 339,000.95
Step by Step Solution
- Step 1: Write the proportion equation
449,609.18 : 620,453.40 = 245,655.74 : x - Step 2: Convert to fraction form
449,609.18/620,453.40 = 245,655.74/x - Step 3: Cross multiply
449,609.18x = 620,453.40 × 245,655.74 - Step 4: Simplify right side
449,609.18x = 152,417,939,112.52 - Step 5: Solve for x
x = 152,417,939,112.52/449,609.18 - Step 6: Final answer
x = 339,000.95
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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.