Finding the Fourth Proportional to 703,423.97, 970,679.99 and 393,352.09
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Solution
The fourth proportional to 703,423.97, 970,679.99 and 393,352.09 is: 542,800.67
Step by Step Solution
- Step 1: Write the proportion equation
703,423.97 : 970,679.99 = 393,352.09 : x - Step 2: Convert to fraction form
703,423.97/970,679.99 = 393,352.09/x - Step 3: Cross multiply
703,423.97x = 970,679.99 × 393,352.09 - Step 4: Simplify right side
703,423.97x = 381,818,999,717.24 - Step 5: Solve for x
x = 381,818,999,717.24/703,423.97 - Step 6: Final answer
x = 542,800.67
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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.