Finding the Fourth Proportional to 539,431.80, 809,147.70 and 362,023.80
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Solution
The fourth proportional to 539,431.80, 809,147.70 and 362,023.80 is: 543,035.70
Step by Step Solution
- Step 1: Write the proportion equation
539,431.80 : 809,147.70 = 362,023.80 : x - Step 2: Convert to fraction form
539,431.80/809,147.70 = 362,023.80/x - Step 3: Cross multiply
539,431.80x = 809,147.70 × 362,023.80 - Step 4: Simplify right side
539,431.80x = 292,930,725,115.26 - Step 5: Solve for x
x = 292,930,725,115.26/539,431.80 - Step 6: Final answer
x = 543,035.70
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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.