Finding the Fourth Proportional to 726,353.80, 1,089,530.70 and 558,197.80
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Solution
The fourth proportional to 726,353.80, 1,089,530.70 and 558,197.80 is: 837,296.70
Step by Step Solution
- Step 1: Write the proportion equation
726,353.80 : 1,089,530.70 = 558,197.80 : x - Step 2: Convert to fraction form
726,353.80/1,089,530.70 = 558,197.80/x - Step 3: Cross multiply
726,353.80x = 1,089,530.70 × 558,197.80 - Step 4: Simplify right side
726,353.80x = 608,173,639,772.46 - Step 5: Solve for x
x = 608,173,639,772.46/726,353.80 - Step 6: Final answer
x = 837,296.70
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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.