Finding the Fourth Proportional to 625,103.68, 862,430.88 and 353,131.84
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Solution
The fourth proportional to 625,103.68, 862,430.88 and 353,131.84 is: 487,202.06
Step by Step Solution
- Step 1: Write the proportion equation
625,103.68 : 862,430.88 = 353,131.84 : x - Step 2: Convert to fraction form
625,103.68/862,430.88 = 353,131.84/x - Step 3: Cross multiply
625,103.68x = 862,430.88 × 353,131.84 - Step 4: Simplify right side
625,103.68x = 304,551,803,527.22 - Step 5: Solve for x
x = 304,551,803,527.22/625,103.68 - Step 6: Final answer
x = 487,202.06
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.