Finding the Fourth Proportional to 2,811,307.47, 4,216,961.25 and 681,391.68
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Solution
The fourth proportional to 2,811,307.47, 4,216,961.25 and 681,391.68 is: 1,022,087.53
Step by Step Solution
- Step 1: Write the proportion equation
2,811,307.47 : 4,216,961.25 = 681,391.68 : x - Step 2: Convert to fraction form
2,811,307.47/4,216,961.25 = 681,391.68/x - Step 3: Cross multiply
2,811,307.47x = 4,216,961.25 × 681,391.68 - Step 4: Simplify right side
2,811,307.47x = 2,873,402,310,632.40 - Step 5: Solve for x
x = 2,873,402,310,632.40/2,811,307.47 - Step 6: Final answer
x = 1,022,087.53
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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.