Finding the Fourth Proportional to 3,798,643.70, 5,697,965.55 and 1,139,251.70
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Solution
The fourth proportional to 3,798,643.70, 5,697,965.55 and 1,139,251.70 is: 1,708,877.55
Step by Step Solution
- Step 1: Write the proportion equation
3,798,643.70 : 5,697,965.55 = 1,139,251.70 : x - Step 2: Convert to fraction form
3,798,643.70/5,697,965.55 = 1,139,251.70/x - Step 3: Cross multiply
3,798,643.70x = 5,697,965.55 × 1,139,251.70 - Step 4: Simplify right side
3,798,643.70x = 6,491,416,939,378.94 - Step 5: Solve for x
x = 6,491,416,939,378.94/3,798,643.70 - Step 6: Final answer
x = 1,708,877.55
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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.