Finding the Fourth Proportional to 432,913.70, 649,370.55 and 432,913.70
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Solution
The fourth proportional to 432,913.70, 649,370.55 and 432,913.70 is: 649,370.55
Step by Step Solution
- Step 1: Write the proportion equation
432,913.70 : 649,370.55 = 432,913.70 : x - Step 2: Convert to fraction form
432,913.70/649,370.55 = 432,913.70/x - Step 3: Cross multiply
432,913.70x = 649,370.55 × 432,913.70 - Step 4: Simplify right side
432,913.70x = 281,121,407,471.54 - Step 5: Solve for x
x = 281,121,407,471.54/432,913.70 - Step 6: Final answer
x = 649,370.55
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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.