Finding the Fourth Proportional to 603,688.05, 905,532.08 and 288,760.05
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Solution
The fourth proportional to 603,688.05, 905,532.08 and 288,760.05 is: 433,140.08
Step by Step Solution
- Step 1: Write the proportion equation
603,688.05 : 905,532.08 = 288,760.05 : x - Step 2: Convert to fraction form
603,688.05/905,532.08 = 288,760.05/x - Step 3: Cross multiply
603,688.05x = 905,532.08 × 288,760.05 - Step 4: Simplify right side
603,688.05x = 261,481,487,253.60 - Step 5: Solve for x
x = 261,481,487,253.60/603,688.05 - Step 6: Final answer
x = 433,140.08
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.