Finding the Fourth Proportional to 1,422,082.12, 1,962,473.36 and 777,502.36
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Solution
The fourth proportional to 1,422,082.12, 1,962,473.36 and 777,502.36 is: 1,072,953.28
Step by Step Solution
- Step 1: Write the proportion equation
1,422,082.12 : 1,962,473.36 = 777,502.36 : x - Step 2: Convert to fraction form
1,422,082.12/1,962,473.36 = 777,502.36/x - Step 3: Cross multiply
1,422,082.12x = 1,962,473.36 × 777,502.36 - Step 4: Simplify right side
1,422,082.12x = 1,525,827,668,837.13 - Step 5: Solve for x
x = 1,525,827,668,837.13/1,422,082.12 - Step 6: Final answer
x = 1,072,953.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.