Finding the Fourth Proportional to 874,139.17, 1,206,349.26 and 486,954.12
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Solution
The fourth proportional to 874,139.17, 1,206,349.26 and 486,954.12 is: 672,017.41
Step by Step Solution
- Step 1: Write the proportion equation
874,139.17 : 1,206,349.26 = 486,954.12 : x - Step 2: Convert to fraction form
874,139.17/1,206,349.26 = 486,954.12/x - Step 3: Cross multiply
874,139.17x = 1,206,349.26 × 486,954.12 - Step 4: Simplify right side
874,139.17x = 587,436,742,315.95 - Step 5: Solve for x
x = 587,436,742,315.95/874,139.17 - Step 6: Final answer
x = 672,017.41
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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.