Finding the Fourth Proportional to 712,235.80, 1,068,353.70 and 213,599.80
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Solution
The fourth proportional to 712,235.80, 1,068,353.70 and 213,599.80 is: 320,399.70
Step by Step Solution
- Step 1: Write the proportion equation
712,235.80 : 1,068,353.70 = 213,599.80 : x - Step 2: Convert to fraction form
712,235.80/1,068,353.70 = 213,599.80/x - Step 3: Cross multiply
712,235.80x = 1,068,353.70 × 213,599.80 - Step 4: Simplify right side
712,235.80x = 228,200,136,649.26 - Step 5: Solve for x
x = 228,200,136,649.26/712,235.80 - Step 6: Final answer
x = 320,399.70
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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.