Finding the Fourth Proportional to 798,138.86, 1,197,426.99 and 398,296.94
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Solution
The fourth proportional to 798,138.86, 1,197,426.99 and 398,296.94 is: 597,554.55
Step by Step Solution
- Step 1: Write the proportion equation
798,138.86 : 1,197,426.99 = 398,296.94 : x - Step 2: Convert to fraction form
798,138.86/1,197,426.99 = 398,296.94/x - Step 3: Cross multiply
798,138.86x = 1,197,426.99 × 398,296.94 - Step 4: Simplify right side
798,138.86x = 476,931,505,990.41 - Step 5: Solve for x
x = 476,931,505,990.41/798,138.86 - Step 6: Final answer
x = 597,554.55
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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.