Finding the Fourth Proportional to 878,861.71, 1,212,919.58 and 534,722.08
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Solution
The fourth proportional to 878,861.71, 1,212,919.58 and 534,722.08 is: 737,971.48
Step by Step Solution
- Step 1: Write the proportion equation
878,861.71 : 1,212,919.58 = 534,722.08 : x - Step 2: Convert to fraction form
878,861.71/1,212,919.58 = 534,722.08/x - Step 3: Cross multiply
878,861.71x = 1,212,919.58 × 534,722.08 - Step 4: Simplify right side
878,861.71x = 648,574,878,016.72 - Step 5: Solve for x
x = 648,574,878,016.72/878,861.71 - Step 6: Final answer
x = 737,971.48
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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.