Finding the Fourth Proportional to 743,152.99, 1,025,516.83 and 420,865.40
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Solution
The fourth proportional to 743,152.99, 1,025,516.83 and 420,865.40 is: 580,774.83
Step by Step Solution
- Step 1: Write the proportion equation
743,152.99 : 1,025,516.83 = 420,865.40 : x - Step 2: Convert to fraction form
743,152.99/1,025,516.83 = 420,865.40/x - Step 3: Cross multiply
743,152.99x = 1,025,516.83 × 420,865.40 - Step 4: Simplify right side
743,152.99x = 431,604,550,864.68 - Step 5: Solve for x
x = 431,604,550,864.68/743,152.99 - Step 6: Final answer
x = 580,774.83
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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.