Finding the Fourth Proportional to 569,923.10, 786,512.51 and 311,794.05
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Solution
The fourth proportional to 569,923.10, 786,512.51 and 311,794.05 is: 430,285.99
Step by Step Solution
- Step 1: Write the proportion equation
569,923.10 : 786,512.51 = 311,794.05 : x - Step 2: Convert to fraction form
569,923.10/786,512.51 = 311,794.05/x - Step 3: Cross multiply
569,923.10x = 786,512.51 × 311,794.05 - Step 4: Simplify right side
569,923.10x = 245,229,921,648.05 - Step 5: Solve for x
x = 245,229,921,648.05/569,923.10 - Step 6: Final answer
x = 430,285.99
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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.