Finding the Fourth Proportional to 539,537.80, 809,306.70 and 259,601.80
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Solution
The fourth proportional to 539,537.80, 809,306.70 and 259,601.80 is: 389,402.70
Step by Step Solution
- Step 1: Write the proportion equation
539,537.80 : 809,306.70 = 259,601.80 : x - Step 2: Convert to fraction form
539,537.80/809,306.70 = 259,601.80/x - Step 3: Cross multiply
539,537.80x = 809,306.70 × 259,601.80 - Step 4: Simplify right side
539,537.80x = 210,097,476,072.06 - Step 5: Solve for x
x = 210,097,476,072.06/539,537.80 - Step 6: Final answer
x = 389,402.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.