Finding the Fourth Proportional to 706,400.26, 974,433.36 and 420,012.70
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Solution
The fourth proportional to 706,400.26, 974,433.36 and 420,012.70 is: 579,380.29
Step by Step Solution
- Step 1: Write the proportion equation
706,400.26 : 974,433.36 = 420,012.70 : x - Step 2: Convert to fraction form
706,400.26/974,433.36 = 420,012.70/x - Step 3: Cross multiply
706,400.26x = 974,433.36 × 420,012.70 - Step 4: Simplify right side
706,400.26x = 409,274,386,503.67 - Step 5: Solve for x
x = 409,274,386,503.67/706,400.26 - Step 6: Final answer
x = 579,380.29
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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.