Finding the Fourth Proportional to 1,113,992.76, 1,670,470.74 and 403,992.12
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Solution
The fourth proportional to 1,113,992.76, 1,670,470.74 and 403,992.12 is: 605,800.18
Step by Step Solution
- Step 1: Write the proportion equation
1,113,992.76 : 1,670,470.74 = 403,992.12 : x - Step 2: Convert to fraction form
1,113,992.76/1,670,470.74 = 403,992.12/x - Step 3: Cross multiply
1,113,992.76x = 1,670,470.74 × 403,992.12 - Step 4: Simplify right side
1,113,992.76x = 674,857,015,650.57 - Step 5: Solve for x
x = 674,857,015,650.57/1,113,992.76 - Step 6: Final answer
x = 605,800.18
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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.