Finding the Fourth Proportional to 563,488.64, 777,616.57 and 305,366.14
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Solution
The fourth proportional to 563,488.64, 777,616.57 and 305,366.14 is: 421,406.49
Step by Step Solution
- Step 1: Write the proportion equation
563,488.64 : 777,616.57 = 305,366.14 : x - Step 2: Convert to fraction form
563,488.64/777,616.57 = 305,366.14/x - Step 3: Cross multiply
563,488.64x = 777,616.57 × 305,366.14 - Step 4: Simplify right side
563,488.64x = 237,457,770,380.94 - Step 5: Solve for x
x = 237,457,770,380.94/563,488.64 - Step 6: Final answer
x = 421,406.49
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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.