Finding the Fourth Proportional to 703,220.68, 970,449.21 and 380,930.79
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Solution
The fourth proportional to 703,220.68, 970,449.21 and 380,930.79 is: 525,687.02
Step by Step Solution
- Step 1: Write the proportion equation
703,220.68 : 970,449.21 = 380,930.79 : x - Step 2: Convert to fraction form
703,220.68/970,449.21 = 380,930.79/x - Step 3: Cross multiply
703,220.68x = 970,449.21 × 380,930.79 - Step 4: Simplify right side
703,220.68x = 369,673,984,220.18 - Step 5: Solve for x
x = 369,673,984,220.18/703,220.68 - Step 6: Final answer
x = 525,687.02
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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.