Finding the Fourth Proportional to 874,937.80, 1,207,570.74 and 512,340.49
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Solution
The fourth proportional to 874,937.80, 1,207,570.74 and 512,340.49 is: 707,121.56
Step by Step Solution
- Step 1: Write the proportion equation
874,937.80 : 1,207,570.74 = 512,340.49 : x - Step 2: Convert to fraction form
874,937.80/1,207,570.74 = 512,340.49/x - Step 3: Cross multiply
874,937.80x = 1,207,570.74 × 512,340.49 - Step 4: Simplify right side
874,937.80x = 618,687,384,641.26 - Step 5: Solve for x
x = 618,687,384,641.26/874,937.80 - Step 6: Final answer
x = 707,121.56
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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.