Finding the Fourth Proportional to 484,985.70, 727,478.55 and 449,993.70
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Solution
The fourth proportional to 484,985.70, 727,478.55 and 449,993.70 is: 674,990.55
Step by Step Solution
- Step 1: Write the proportion equation
484,985.70 : 727,478.55 = 449,993.70 : x - Step 2: Convert to fraction form
484,985.70/727,478.55 = 449,993.70/x - Step 3: Cross multiply
484,985.70x = 727,478.55 × 449,993.70 - Step 4: Simplify right side
484,985.70x = 327,360,764,385.14 - Step 5: Solve for x
x = 327,360,764,385.14/484,985.70 - Step 6: Final answer
x = 674,990.55
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1.5x scale
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.