Finding the Fourth Proportional to 612,121.60, 916,108.80 and 612,121.60
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Solution
The fourth proportional to 612,121.60, 916,108.80 and 612,121.60 is: 916,108.80
Step by Step Solution
- Step 1: Write the proportion equation
612,121.60 : 916,108.80 = 612,121.60 : x - Step 2: Convert to fraction form
612,121.60/916,108.80 = 612,121.60/x - Step 3: Cross multiply
612,121.60x = 916,108.80 × 612,121.60 - Step 4: Simplify right side
612,121.60x = 560,769,984,430.08 - Step 5: Solve for x
x = 560,769,984,430.08/612,121.60 - Step 6: Final answer
x = 916,108.80
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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.