Finding the Fourth Proportional to 500,905.19, 751,357.79 and 145,946.99
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Solution
The fourth proportional to 500,905.19, 751,357.79 and 145,946.99 is: 218,920.49
Step by Step Solution
- Step 1: Write the proportion equation
500,905.19 : 751,357.79 = 145,946.99 : x - Step 2: Convert to fraction form
500,905.19/751,357.79 = 145,946.99/x - Step 3: Cross multiply
500,905.19x = 751,357.79 × 145,946.99 - Step 4: Simplify right side
500,905.19x = 109,658,407,863.55 - Step 5: Solve for x
x = 109,658,407,863.55/500,905.19 - Step 6: Final answer
x = 218,920.49
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Double scale
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Similar ratio
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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.