Finding the Fourth Proportional to 674,263.40, 1,011,542.79 and 253,539.28
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Solution
The fourth proportional to 674,263.40, 1,011,542.79 and 253,539.28 is: 380,364.45
Step by Step Solution
- Step 1: Write the proportion equation
674,263.40 : 1,011,542.79 = 253,539.28 : x - Step 2: Convert to fraction form
674,263.40/1,011,542.79 = 253,539.28/x - Step 3: Cross multiply
674,263.40x = 1,011,542.79 × 253,539.28 - Step 4: Simplify right side
674,263.40x = 256,465,825,608.08 - Step 5: Solve for x
x = 256,465,825,608.08/674,263.40 - Step 6: Final answer
x = 380,364.45
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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.