Finding the Fourth Proportional to 691,652.55, 954,478.62 and 385,729.26
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Solution
The fourth proportional to 691,652.55, 954,478.62 and 385,729.26 is: 532,305.32
Step by Step Solution
- Step 1: Write the proportion equation
691,652.55 : 954,478.62 = 385,729.26 : x - Step 2: Convert to fraction form
691,652.55/954,478.62 = 385,729.26/x - Step 3: Cross multiply
691,652.55x = 954,478.62 × 385,729.26 - Step 4: Simplify right side
691,652.55x = 368,170,331,778.42 - Step 5: Solve for x
x = 368,170,331,778.42/691,652.55 - Step 6: Final answer
x = 532,305.32
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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.