Finding the Fourth Proportional to 712,824.20, 1,069,237.68 and 173,078.21
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Solution
The fourth proportional to 712,824.20, 1,069,237.68 and 173,078.21 is: 259,617.65
Step by Step Solution
- Step 1: Write the proportion equation
712,824.20 : 1,069,237.68 = 173,078.21 : x - Step 2: Convert to fraction form
712,824.20/1,069,237.68 = 173,078.21/x - Step 3: Cross multiply
712,824.20x = 1,069,237.68 × 173,078.21 - Step 4: Simplify right side
712,824.20x = 185,061,743,718.95 - Step 5: Solve for x
x = 185,061,743,718.95/712,824.20 - Step 6: Final answer
x = 259,617.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.