Finding the Fourth Proportional to 995,312.40, 1,373,392.80 and 587,431.44
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Solution
The fourth proportional to 995,312.40, 1,373,392.80 and 587,431.44 is: 810,573.76
Step by Step Solution
- Step 1: Write the proportion equation
995,312.40 : 1,373,392.80 = 587,431.44 : x - Step 2: Convert to fraction form
995,312.40/1,373,392.80 = 587,431.44/x - Step 3: Cross multiply
995,312.40x = 1,373,392.80 × 587,431.44 - Step 4: Simplify right side
995,312.40x = 806,774,110,189.63 - Step 5: Solve for x
x = 806,774,110,189.63/995,312.40 - Step 6: Final answer
x = 810,573.76
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1.5x scale
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.