Finding the Fourth Proportional to 862,943.70, 1,190,838.66 and 495,409.98
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Solution
The fourth proportional to 862,943.70, 1,190,838.66 and 495,409.98 is: 683,652.20
Step by Step Solution
- Step 1: Write the proportion equation
862,943.70 : 1,190,838.66 = 495,409.98 : x - Step 2: Convert to fraction form
862,943.70/1,190,838.66 = 495,409.98/x - Step 3: Cross multiply
862,943.70x = 1,190,838.66 × 495,409.98 - Step 4: Simplify right side
862,943.70x = 589,953,356,733.83 - Step 5: Solve for x
x = 589,953,356,733.83/862,943.70 - Step 6: Final answer
x = 683,652.20
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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.