Finding the Fourth Proportional to 767,823.80, 1,151,735.70 and 394,575.80
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Solution
The fourth proportional to 767,823.80, 1,151,735.70 and 394,575.80 is: 591,863.70
Step by Step Solution
- Step 1: Write the proportion equation
767,823.80 : 1,151,735.70 = 394,575.80 : x - Step 2: Convert to fraction form
767,823.80/1,151,735.70 = 394,575.80/x - Step 3: Cross multiply
767,823.80x = 1,151,735.70 × 394,575.80 - Step 4: Simplify right side
767,823.80x = 454,447,035,216.06 - Step 5: Solve for x
x = 454,447,035,216.06/767,823.80 - Step 6: Final answer
x = 591,863.70
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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.