Finding the Fourth Proportional to 782,305.46, 1,079,544.20 and 480,441.14
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Solution
The fourth proportional to 782,305.46, 1,079,544.20 and 480,441.14 is: 662,985.84
Step by Step Solution
- Step 1: Write the proportion equation
782,305.46 : 1,079,544.20 = 480,441.14 : x - Step 2: Convert to fraction form
782,305.46/1,079,544.20 = 480,441.14/x - Step 3: Cross multiply
782,305.46x = 1,079,544.20 × 480,441.14 - Step 4: Simplify right side
782,305.46x = 518,657,446,128.39 - Step 5: Solve for x
x = 518,657,446,128.39/782,305.46 - Step 6: Final answer
x = 662,985.84
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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.