Finding the Fourth Proportional to 874,938.30, 1,207,571.43 and 512,340.99
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Solution
The fourth proportional to 874,938.30, 1,207,571.43 and 512,340.99 is: 707,122.25
Step by Step Solution
- Step 1: Write the proportion equation
874,938.30 : 1,207,571.43 = 512,340.99 : x - Step 2: Convert to fraction form
874,938.30/1,207,571.43 = 512,340.99/x - Step 3: Cross multiply
874,938.30x = 1,207,571.43 × 512,340.99 - Step 4: Simplify right side
874,938.30x = 618,688,341,941.92 - Step 5: Solve for x
x = 618,688,341,941.92/874,938.30 - Step 6: Final answer
x = 707,122.25
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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.