Finding the Fourth Proportional to 874,077.48, 1,206,247.55 and 486,918.95
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Solution
The fourth proportional to 874,077.48, 1,206,247.55 and 486,918.95 is: 671,959.63
Step by Step Solution
- Step 1: Write the proportion equation
874,077.48 : 1,206,247.55 = 486,918.95 : x - Step 2: Convert to fraction form
874,077.48/1,206,247.55 = 486,918.95/x - Step 3: Cross multiply
874,077.48x = 1,206,247.55 × 486,918.95 - Step 4: Simplify right side
874,077.48x = 587,344,782,020.24 - Step 5: Solve for x
x = 587,344,782,020.24/874,077.48 - Step 6: Final answer
x = 671,959.63
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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.