Finding the Fourth Proportional to 993,203.80, 1,489,805.70 and 930,995.80
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Solution
The fourth proportional to 993,203.80, 1,489,805.70 and 930,995.80 is: 1,396,493.70
Step by Step Solution
- Step 1: Write the proportion equation
993,203.80 : 1,489,805.70 = 930,995.80 : x - Step 2: Convert to fraction form
993,203.80/1,489,805.70 = 930,995.80/x - Step 3: Cross multiply
993,203.80x = 1,489,805.70 × 930,995.80 - Step 4: Simplify right side
993,203.80x = 1,387,002,849,516.06 - Step 5: Solve for x
x = 1,387,002,849,516.06/993,203.80 - Step 6: Final answer
x = 1,396,493.70
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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.