Finding the Fourth Proportional to 449,423.67, 620,203.67 and 258,437.08
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Solution
The fourth proportional to 449,423.67, 620,203.67 and 258,437.08 is: 356,642.60
Step by Step Solution
- Step 1: Write the proportion equation
449,423.67 : 620,203.67 = 258,437.08 : x - Step 2: Convert to fraction form
449,423.67/620,203.67 = 258,437.08/x - Step 3: Cross multiply
449,423.67x = 620,203.67 × 258,437.08 - Step 4: Simplify right side
449,423.67x = 160,283,625,932.29 - Step 5: Solve for x
x = 160,283,625,932.29/449,423.67 - Step 6: Final answer
x = 356,642.60
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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.