Finding the Fourth Proportional to 620,747.80, 931,121.70 and 620,747.80
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Solution
The fourth proportional to 620,747.80, 931,121.70 and 620,747.80 is: 931,121.70
Step by Step Solution
- Step 1: Write the proportion equation
620,747.80 : 931,121.70 = 620,747.80 : x - Step 2: Convert to fraction form
620,747.80/931,121.70 = 620,747.80/x - Step 3: Cross multiply
620,747.80x = 931,121.70 × 620,747.80 - Step 4: Simplify right side
620,747.80x = 577,991,746,807.26 - Step 5: Solve for x
x = 577,991,746,807.26/620,747.80 - Step 6: Final answer
x = 931,121.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.