Finding the Fourth Proportional to 873,328.62, 1,205,184.99 and 486,137.90
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Solution
The fourth proportional to 873,328.62, 1,205,184.99 and 486,137.90 is: 670,865.57
Step by Step Solution
- Step 1: Write the proportion equation
873,328.62 : 1,205,184.99 = 486,137.90 : x - Step 2: Convert to fraction form
873,328.62/1,205,184.99 = 486,137.90/x - Step 3: Cross multiply
873,328.62x = 1,205,184.99 × 486,137.90 - Step 4: Simplify right side
873,328.62x = 585,886,100,150.12 - Step 5: Solve for x
x = 585,886,100,150.12/873,328.62 - Step 6: Final answer
x = 670,865.57
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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.