Finding the Fourth Proportional to 563,610.12, 777,783.80 and 305,491.28
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Solution
The fourth proportional to 563,610.12, 777,783.80 and 305,491.28 is: 421,578.96
Step by Step Solution
- Step 1: Write the proportion equation
563,610.12 : 777,783.80 = 305,491.28 : x - Step 2: Convert to fraction form
563,610.12/777,783.80 = 305,491.28/x - Step 3: Cross multiply
563,610.12x = 777,783.80 × 305,491.28 - Step 4: Simplify right side
563,610.12x = 237,606,168,625.26 - Step 5: Solve for x
x = 237,606,168,625.26/563,610.12 - Step 6: Final answer
x = 421,578.96
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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.