Finding the Fourth Proportional to 762,613.98, 1,143,927.49 and 193,995.57
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Solution
The fourth proportional to 762,613.98, 1,143,927.49 and 193,995.57 is: 290,995.01
Step by Step Solution
- Step 1: Write the proportion equation
762,613.98 : 1,143,927.49 = 193,995.57 : x - Step 2: Convert to fraction form
762,613.98/1,143,927.49 = 193,995.57/x - Step 3: Cross multiply
762,613.98x = 1,143,927.49 × 193,995.57 - Step 4: Simplify right side
762,613.98x = 221,916,865,461.22 - Step 5: Solve for x
x = 221,916,865,461.22/762,613.98 - Step 6: Final answer
x = 290,995.01
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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.