Finding the Fourth Proportional to 703,998.55, 971,512.05 and 398,134.99
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Solution
The fourth proportional to 703,998.55, 971,512.05 and 398,134.99 is: 549,422.92
Step by Step Solution
- Step 1: Write the proportion equation
703,998.55 : 971,512.05 = 398,134.99 : x - Step 2: Convert to fraction form
703,998.55/971,512.05 = 398,134.99/x - Step 3: Cross multiply
703,998.55x = 971,512.05 × 398,134.99 - Step 4: Simplify right side
703,998.55x = 386,792,940,311.63 - Step 5: Solve for x
x = 386,792,940,311.63/703,998.55 - Step 6: Final answer
x = 549,422.92
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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.